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The Casebook of Sherlock Holmes: Sherlock Holmes #9
The Casebook of Sherlock Holmes: Sherlock Holmes #9
Arthur Conan Doyle
¥16.27
The publication of Darwin’s The Origin of Species in 1859 marked a dramatic turning point in scientific thought. The volume had taken Darwin more than twenty years to publish, in part because he envisioned the storm of controversy it was certain to unleash. Indeed, selling out its first edition on its first day, The Origin of Species revolutionized science, philosophy, and theology. Darwin’s reasoned, documented arguments carefully advance his theory of natural selection and his assertion that species were not created all at once by a divine hand but started with a few simple forms that mutated and adapted over time. Whether commenting on his own poor health, discussing his experiments to test instinct in bees, or relating a conversation about a South American burrowing rodent, Darwin’s monumental achievement is surprisingly personal and delightfully readable. Its profound ideas remain controversial even today, making it the most influential book in the natural sciences ever written—an important work not just to its time but to the history of humankind.
Humanizing Psychiatry:The Biocognitive Model
Humanizing Psychiatry:The Biocognitive Model
Niall McLaren
¥90.52
Does psychiatry have a future? Assailed from many directions, under constant attack for its reliance on "a drug for all problems" and increasingly unable to attract bright new trainees, the specialty is showing every sign of terminal decline. The reason is simple: modern psychiatry has no formal model of mental disorder to guide its daily practice, teaching and research. Unfortunately, the orthodox psychiatrists who control this most conservative profession are utterly antagonistic to criticism. Despite the evidence, they maintain a blind faith that "science will deliver the goods" by a biological examination of the brain. This book argues that their faith is entirely misplaced and is contributing to the destruction of an essential part of civilized life, the fair and equitable treatment of people with mental disorders. The author offers a rational model of mental disorder within the framework of a molecular resolution of the mind-body problem. Fully developed, this model will have revolutionary consequences for psychiatry--and the mentally-afflicted. Acclaim for the writing of Niall Mclaren, M.D. "This book is a tour de force. It demonstrates a tremendous amount of erudition, intelligence and application in the writer. It advances an interesting and plausible mechanism for many forms of human distress. It is an important work that deserves to take its place among the classics in books about psychiatry." --Robert Rich, PhD, AnxietyAndDepression-Help.com "Dr. McLaren brilliantly wields the sword of philosophy to refute the modern theories of psychiatry with an analysis that is sharp and deadly. His own proposed novel theory could be the dawn of a new revolution in the medicine of mental illness." --Andrew R. Kaufman, MD, Chief Resident of Emergency Psychiatry, Duke University Medical Center "I found Niall McLaren's book to be an incredibly well-written and thoughtprovoking. It is not, by any means, easy reading. It is also not for someone who doesn't have some form of background in understanding the various psychological theories and mental health conditions. I think that this would make an excellent textbook for a graduate class that allows students to question the theories that we already have." --Paige Lovitt for Reader Views About the Author The author is a psychiatrist of some 35 years standing. He writes philosophy in the bush outside Darwin, northern Australia, with his family as critics. For six years, while working in Western Australia, he was the world's most isolated psychiatrist. For more information please visit www.FuturePsychiatry.com PSY018000 Psychology : Mental Illness MED105000 Medical : Psychiatry - General PHI015000 Philosophy : Mind & Body
The Book of Prognostics
The Book of Prognostics
Hippocrates
¥40.79
It appears to me a most excellent thing for the physician to cultivate Prognosis; for by foreseeing and foretelling, in the presence of the sick, the present, the past, and the future, and explaining the omissions which patients have been guilty of, he will be the more readily believed to be acquainted with the circumstances of the sick; so that men will have confidence to intrust themselves to such a physician.
Strategies:A Chronic Fatigue Syndrome and Fibromyalgia Journey
Strategies:A Chronic Fatigue Syndrome and Fibromyalgia Journey
Tami Brady
¥56.82
It is estimated that 4-8 million people in the United States suffer with Fibromyalgia. Another one million also have Chronic Fatigue Syndrome. Some statistics state that Chronic Fatigue Syndrome and Fibromyalgia may directly affect 5% of the world's population. I am one of the individuals in this growing epidemic. In 1997, after a chaotic year of intense medical and psychological testing, I was diagnosed with Chronic Fatigue Syndrome and Fibromyalgia. I spent much of the last ten years in deep denial feeling alone, confused, frustrated, and angry. It has taken me a great deal of soul searching, but I believe that today I am a better, more centered person because of my experiences. I've never been someone who dictates advice, so my book provides worksheets you can develop to tailor your personal responses to symptoms and crises. It is the good, the bad, and the ugly of my personal journey that I share with you, my fellow Fibromites. My hope is simple, that you will find solace and renewed hope in my words.What People Are Saying About Strategies "This book is a passionate, intense account of one person's conquest over suffering. As a psychologist working with chronic pain sufferers, I can endorse Ms. Brady's philosophy, approach and tools." -Bob Rich, PhD, author Cancer: A Personal Challenge Author info at http://tami-brady.com Another great self-help book from Loving Healing Press
The Four Million
The Four Million
O. Henry
¥40.79
Some of the best stories from the master of wordplay and surprise endings, including 'The Gift of the Magi' and 'The Cop and the Anthem'. Many of the stories in this collection are set in New York City.
REIGNITE: Transform From Burned Out to On Fire and Find New Meaning in Your Care
REIGNITE: Transform From Burned Out to On Fire and Find New Meaning in Your Care
Dr. Clark Gaither
¥81.50
Think about your job or career for a moment. Is your work pleasant, enjoyable, and inspiring? Does it provide you with opportunities to innovate and create using all of your natural talents and abilities? Does work energize you and bring you joy and happiness? Or, do you instead feel emotionally exhausted and cynical with a lack of any sense of personal accomplishment? If so, you are probably burned out. One thing is certain, you cannot live a life of happiness and passion driven purpose if you are burned out. Instead of finding deep satisfaction and happiness in your work it is probably something you have come to dread, like going back to work on Mondays. I should know. I became burned out once. I became burned out at my job as a family physician so I understand burnout. I know firsthand how personally and professionally devastating it can be and how costly it can become to organizations. I also learned what to do about it, how to FIX it! Learn how to transform from being burned out to ON FIRE and find new meaning in your career and life. Within the pages of this book, I will show you how.
Roads of Destiny
Roads of Destiny
O. Henry
¥40.79
The title story of the volume Roads of Destiny, a story allegorical in nature, deals with that all important moment of choice: the decision to act, speak, or dress in a way which seems to determine the whole course of a life. O. Henry builds his own concept suggesting that the choice is not so much among different fates as among different versions of the same fate.
Life and Habit
Life and Habit
Samuel Butler
¥27.88
One more point deserves notice. Butler often refers in “Life and Habit” to Darwin’s “Variations of Animals and Plants under Domestication.” When he does so it is always under the name “Plants and Animals.” More often still he refers to Darwin’s “Origin of Species by means Natural Selection,” terming it at one time “Origin of Species” and at another “Natural Selection,” sometimes, as on p. 278, using both names within a few lines of each other. Butler was as a rule scrupulously careful about quotations, and I can offer no explanation of this curious confusion of titles.? Since Samuel Butler published “Life and Habit” thirty-three [vii] years have elapsed—years fruitful in change and discovery, during which many of the mighty have been put down from their seat and many of the humble have been exalted. I do not know that Butler can truthfully be called humble, indeed, I think he had very few misgivings as to his ultimate triumph, but he has certainly been exalted with a rapidity that he himself can scarcely have foreseen. During his lifetime he was a literary pariah, the victim of an orga-nized conspiracy of silence. He is now, I think it may be said without exaggeration, universally accepted as one of the most remarkable English writers of the latter part of the nineteenth century. ??I will not weary my readers by quoting the numerous tributes paid by distinguished contemporary writers to Butler’s originality and force of mind, but I cannot refrain from illustrating the changed attitude of the sci-entific world to Butler and his theories by a reference to “Darwin and Modern Science,” the collection of essays published in 1909 by the University of Cambridge, in commemoration of the Darwin centenary. ??In that work Professor Bateson, while referring repeatedly to Butler’s biological works, speaks of him as “the most brilliant and by far the most interesting of Darwin’s opponents, whose works are at length emerging from oblivion.” ??R. A. STREATFEILD.?November, 1910.
My Inventions: [Illustrated & Biography Added]
My Inventions: [Illustrated & Biography Added]
Nikola Tesla
¥27.80
NIKOLA TESLA (1856 ~ 1943) was a Serbian American inventor, electrical engineer, mechanical engi-neer, physicist, and futurist best known for his contributions to the design of the modern alternating current (AC) electricity supply system. Tesla gained experience in telephony and electrical engineering before emigrating to the United States in 1884 to work for Thomas Edison in New York City. He soon struck out on his own with financial backers, setting up laboratories and companies to develop a range of electrical devices. His patented AC induction motor and transformer were licensed by George Westinghouse, who also hired Tesla for a short time as a consultant. His work in the formative years of electric power development was involved in a corporate alternating current/direct current "War of Currents" as well as various patent battles.The investors showed little interest in Tesla's ideas for new types of motors and electrical transmission equipment and also seemed to think it was better to develop an electrical utility than invent new systems. They eventually forced Tesla out leaving him penniless. He even lost control of the patents he had generated since he had assigned them to the company in lieu of stock. He had to work at various electrical repair jobs and even as a ditch digger for $2 per day. Tesla considered the winter of 1886/1887 as a time of "terrible headaches and bitter tears." During this time, he questioned the value of his education. Chapter 1 My Early Life: The progressive development of man is vitally dependent on invention. It is the most important product of his creative brain. Its ultimate purpose is the complete mastery of mind over the material world, the harnessing of the forces of nature to human needs. This is the difficult task of the inventor who is often misunderstood and unrewarded. But he finds ample compensation in the pleasing exercises of his powers and in the knowledge of being one of that exceptionally privileged class without whom the race would have long ago perished in the bitter struggle against pitiless elements.Speaking for myself, I have already had more than my full measure of this exquisite enjoyment, so much that for many years my life was little short of continuous rapture. I am credited with being one of the hardest workers and perhaps I am, if thought is the equivalent of labor, for I have devoted to it almost all of my waking hours. But if work is interpreted to be a definite performance in a specified time according to a rigid rule, then I may be the worst of idlers. Every effort under compulsion demands a sacrifice of life-energy. I never paid such a price. On the contrary, I have thrived on my thoughts.In attempting to give a connected and faithful account of my activities in this series of articles which will be presented with the assistance of the Editors of the Electrical Experimenter and are chiefly addressed to our young men readers, I must dwell, however reluctantly, on the impressions of my youth and the circumstances and events which have been instrumental in determining my career. Our first endeavors are purely instinctive, promptings of an imagination vivid and undisciplined. As we grow older reason asserts itself and we become more and more sys-tematic and designing. But those early impulses, although not immediately productive, are of the greatest moment and may shape our very destinies. Indeed, I feel now that had I understood and cultivated instead of suppressing them, I would have added substantial value to my bequest to the world. But not until I had attained manhood did I realize that I was an inventor..
Paradigm? ?i incomensurabilitate
Paradigm? ?i incomensurabilitate
Bîgu Dragoș
¥24.44
Aceast? carte, bazat? pe 20 de ani de cercetare clinic? ?i ?tiin?ific? ?n ce prive?te rolul apei ?n organism, prezint? descoperirea extraordinar? c? deshidratarea cronic? neinten?ionat? produce stres, dureri cronice ?i multe boli degenerative ?nso?ite de durere. Gura uscat? nu este singurul semn de deshidratare; este gre?it s? a?tepta?i p?n? vi se face sete. Ve?i afla care sunt semnalele emise de organism c?nd duce lips? de ap?. Corectarea aportului de ap? – da, de ap?! ap? natural?, c?t mai curat? – v? poate ajuta s? tr?i?i mai s?n?tos, bucur?ndu-v? de o via?? lipsit? de durere. Ve?i ?nv??a: cum s? preveni?i ?n mod natural boli precum astmul bron?ic, alergiile, hipertensiunea arterial?; cum s? ameliora?i durerile, inclusiv pirozisul, durerea de spate, durerea artritic?, durerea din colit? ?i migrenele; cum s? folosi?i apa pentru a preveni ?i combate ?mb?tr?nirea prematur?; cum s? elimina?i f?r? efort kilogramele ?n plus, natural ?i f?r? restric?ii alimentare.
Geometri-I (Konu Anlat?ml?): Lise ??rencilerine, Okulda Yard?mc? ve Temel Yeterl
Geometri-I (Konu Anlat?ml?): Lise ??rencilerine, Okulda Yard?mc? ve Temel Yeterl
Erol Gedikli
¥27.88
Konu Anlat?ml? ?rnek ??zümlü Test ??zümlü Test Sorulu Karma Testli Bu kitab?, lisede okumakta olan ve üniversite s?nav?na haz?rlanmakta olan sizlere geometri dersinizde yard?mc?n?z olmas? amac?yla haz?rlad?m. Kitap 5 b?lümden olu?maktad?r. ? B?lümler; belli bir s?ralama ve sistematik bir bi?imde konu anlat?mlar? ve ?rnek ??zümleri ile ??rencilere yorum yaparak ?al??ma al??kanl???n? kazand?racak bi?imde sunulmaktad?r. Bu derste yapaca??n?z ?al??malar?n?z?n sonucunda ba?ar?l? olman?z? bekliyorsan?z a?a??daki s?ralamaya ?zen g?stererek bu kitaptaki konulara s?ras?yla ?al??man?z? ?neriyorum. Konu anlat?m s?ras?na dikkatle uyunuz. Konu anlat?m ve konu bilgilerini ezbere de?il ve ?rnek üzerinde ??züm yaparak, kavray?n?z. ??zümlü test sorular?n?, kendiniz tekrar ??zerek konu bilgilerinizi ve yorum gücünüzü geli?tiriniz. Cevapl? test sorular?n? ??zerek, cevaplar? ile kar??la?t?r?n?z, varsa yanl??lar?n?z ve eksikleriniz konu tekrar? ile do?rulay?n?z. Konu ile ilgili ba?lant?lar?, konu anlat?m s?ras?na g?re ??rendi?iniz konu bilgilerinizi unutmadan ??zümlerle geli?tirmeye ve sa?lamaya ?al???n?z. Bu y?ntemle ??rendi?imiz konu bilgilerinizi kullanarak, yorumlu bol ve de?i?ik sorular ??zünüz. Soru ??zerken ?ekle g?re ??züm de?il de verilenlere g?re gerekti?inde yard?mc? ?izimlerle (a??ortay, dik do?ru ve paralel do?ru… gibi) ??zümü kolayla?t?rarak, bilinmeyeni en k?sa ve kolay yoldan bulmaya ?al???n?z. ? Sevgili ??rencilerim, umar?m bu kitab?m hayat?n?zda hedefledi?iniz yere ula?man?zda sizlere yard?mc? olacakt?r. De?erli meslekta?lar?m bu kitab? sizlerinde de?erli g?rü?lerinize sunarken ?al??malar?n?zda ba?ar? dileklerimle ele?tirilerinizi de beklerim.????????? ?????????????????????????????????????????????????????????????????????????????????????????? Erol Gedikli Mat. ??retmeni
Pygmalion
Pygmalion
George Bernard Shaw
¥33.03
Majoritatea deceselor cauzate de cancer ar putea fi evitate ?Marele c?l?u“ al secolului XXI, cancerul este ?n mod gre?it perceput ca o calamitate ce love?te la ?nt?mplare, o nenorocire ?mpotriva c?reia suntem neputincio?i. Cartea arat? c? exist? o leg?tur? ?ntre tabagism, surplusul de greutate, sedentarism, alimenta?ie, expunerea la razele ultraviolete, lipsa de somn ?i cancer, precum ?i c? majoritatea deceselor cauzate de aceast? boal? ar putea fi evitate prin modific?ri simple ale stilului de via??. Cele 10 reguli pentru reducerea riscurilor, izvor?te din analiza mai multor decenii de cercet?ri ?tiin?ifice, reprezint? o arm? puternic? ?mpotriva cancerului ?i le ofer? pentru prima dat? celor care au supravie?uit bolii un instrument concret de prevenire a recidivelor, ?n scopul cre?terii speran?ei de via??. ? excesul de zah?r ?i gr?simi din produsele alimentare industriale ar putea induce o dependen?? similar? celei asociate consumului de droguri ? dou? ore ?i jum?tate de activitate fizic? de intensitate moderat?, s?pt?m?nal, reduc riscul de mortalitate al bolnavilor de cancer ? cei care consum? trei por?ii de legume crucifere pe s?pt?m?n? prezint? un risc de recidiv? redus la jum?tate
Memoriile unui om prost
Memoriile unui om prost
Olga Delia Mateescu
¥48.97
De unde vine universul? Ce a fost ?naintea lui? Ce ne va aduce viitorul? ?ntr-un story cosmologic care captiveaz? ?n aceea?i m?sur? ?n care l?mure?te, autorul explic? cele mai recente progrese revolu?ionare ale ?tiin?ei, ce r?stoarn? din temelii probleme filosofice esen?iale. Observa?iile experimentale uluitoare ?i noile teorii fascinante sunt descrise ?ntr-o manier? accesibil? ?i sugereaz? nu doar c? din nimic poate s? ia na?tere ceva, dar ?i c? ?ntotdeauna din nimic va lua na?tere ceva. Un fascinant antidot la g?ndirea filosofic? ?i religioas? perimat?, Universul din nimic este o contribu?ie provocatoare la controversa privind existen?a lui Dumnezeu ?i a tuturor lucrurilor care ne ?nconjoar?. ?Uita?i-l pe Iisus“, argumenteaz? Krauss, ?stelele au murit pentru ca voi s? v? pute?i na?te“. ?Suntem martorii unei revolu?ii cosmologice la fel de important? precum revolu?ia copernican?. Avem acum la dispozi?ie acest ghid substan?ial ?i captivant, o lucrare memorabil?.“ – Ian McEwan
Magáért beszél
Magáért beszél
Lefkovics Péter
¥23.30
Mér? László korábbi nagy siker? k?nyvei komoly szellemi kalandot jelent?, gondolkodásra késztet?, ugyanakkor szórakoztató olvasmánynak bizonyultak. A Mindenki másképp egyforma 1999-ben elnyerte az ??v tudományos k?nyve Németországban” díjak egyikét. Mér? László új k?nyve a szerz? r?videbb, de nem kevésbé elmélyült, elgondolkodtató és szórakoztató írásait tartalmazza. Ezek t?bbsége a Magyar Narancs Egotrip rovatában jelent meg, a k?nyv címe azonos a szerz? ottani sorozatcímével. Ebben a k?nyvben a szerz? a legt?bb írást alaposan átdolgozta. A lényeg nemigen változott, de a szigorú újságcikk-m?faj szorításából kiszabadulva némelyik írás hosszabb, némelyik r?videbb lett – ahogy a téma kívánta. ?s hogy mi ez a talányos cím? A magyarázatot keresse a k?tetben! ?Eredeti szakmám matematikus, majd a m?szaki tudományokból kandidáltam, kés?bb pszichológiából lettem habilitált doktor, nemrég pedig a gazdaságpszichológia professzorává neveztek ki. Emellett k?zel húsz éve vezetek egy játékszoftver-fejleszt? céget, amelynek egyik alapítója vagyok. Tudományos szakcikkek mellett írtam néhány k?nyvet a szélesebb olvasók?z?nség számára is, ezek t?bb idegen nyelven is megjelentek. Az utóbbi években megszerettem a tárca m?faját is – ennek termését mutatja be ez a k?nyv.” Mér? László
A múlt ára
A múlt ára
Anne Levia
¥37.44
Latkóczy Mihály ért? tudással foglalja ?ssze a nagy világvallások k?zül a buddhizmus eredetét fejl?dését, valamint a germán mitológia eredetét, isteneit és legfontosabb alapvetéseit. Ajánljuk mindazoknak, akik klasszikus megk?zelítésben kívánják megismerni ezeket a napjainkra is hatást gyakorló vallások és mitológiák eredetét.
Чотири сезони (Chotiri sezoni)
Чотири сезони (Chotiri sezoni)
Stіven Kіng
¥35.56
Народные средства и рецепты лечения геморроя и варикоза, как и многих других хронических заболеваний, несмотря на простоту и доступность, станут надежной поддержкой медикаментозного лечения и самым эффективным средством профилактики. Продуманная и доступная лечебная диета с рецептами блюд на каждый день, рецепты отваров, настоек и мазей на лекарственных травах, продуктах пчеловодства, лечение лечебной глиной, с помощью соли, квасцов и металлов, водные процедуры, приемы массажа и самомассажа для снятия боли и облегчения симптомов заболевания при регулярном применении заметно и надолго улучшат ваше самочувствие.Narodnye sredstva i recepty lechenija gemorroja i varikoza, kak i mnogih drugih hronicheskih zabolevanij, nesmotrja na prostotu i dostupnost', stanut nadezhnoj podderzhkoj medikamentoznogo lechenija i samym jeffektivnym sredstvom profilaktiki. Produmannaja i dostupnaja lechebnaja dieta s receptami bljud na kazhdyj den', recepty otvarov, nastoek i mazej na lekarstvennyh travah, produktah pchelovodstva, lechenie lechebnoj glinoj, s pomoshh'ju soli, kvascov i metallov, vodnye procedury, priemy massazha i samomassazha dlja snjatija boli i oblegchenija simptomov zabolevanija pri reguljarnom primenenii zametno i nadolgo uluchshat vashe samochuvstvie.
Father Goriot
Father Goriot
Honore De Balzac
¥18.74
In 1861, Henry Dircks, a civil engineer, of London, published a work entitled "Perpetuum Mobile; or, Search for Self-Motive Power, During the Seventeenth, Eighteenth and Nineteenth Centuries." The book contains 599 pages, and was followed in 1870, by a second series by the same author entitled "Perpetuum Mobile, or a History of the Search for Self-Motive Power from the Thirteenth, to the Nineteenth Century." In these two books there is amassed a wonderful amount of material showing on the part of the author diligence, great patience and wide and thorough search.The author of these works was not enamoured of his subject, and his books clearly show that he was not writing them because of any interest he had in the subject of Perpetual Motion. On the contrary, they appear to have been written because of a deep detestation entertained by the author for the subject of Perpetual Motion, and a contemptuous pity for any one seriously interested in the subject. Mr. Dircks's works may be said to be the works of a scold. His sentiments were deep, and his impulses strong, which accounts for the vast amount of labor he did in the preparation of his books. Those books are now out of print, and it is believed by the author of this book that they may well remain so. They contain much material that no one would be justified in wading through. The most complicated mechanisms devised by enthusiastic dreamers are shown in the same detail with which the inventors described them in presenting them to the public, or to the patent offices. Little is to be gained by this. So complicated are many of the devices that only technically trained engineers could read them understandingly, and few technically trained engineers are now greatly interested in self-motive power devices. We believe that every useful or interesting purpose is served if enough devices are collected, classified and presented to show the various principles relied upon by the inventors; with an explanation of why they failed—i. e., wherein the principles relied upon are wrong, and while possibly not out of harmony with any mechanical principles then known, are entirely out of harmony with principles since discovered and now well known. In the preparation of this volume a vast amount of the information furnished by the two works of Mr. Dircks has been rearranged, reclassified, and used.Everyone who has to any extent, by environment, associated with the mass of people who are not technically educated, knows that the persons who are still interested in the subject of Perpetual Motion, and who still seek its attainment, are not technically trained engineers or mathematicians, but for the greater part untrained people of naturally strong mechanical sense, and of natural mechanical and mathematical adaptation.This book is written for the perusal of that large class of people. It is not designed as an argument either for or against the possibility of the attainment of Perpetual Motion. The author is content to classify and present—clearly, it is hoped—the leading endeavors that have been known in that field of effort, and to explain their failure. It is believed by the author that the perusal of the present volume by anyone whose mind has been attracted by the subject of Perpetual Motion will result in an enlightenment, and, it is also believed, will have a tendency to direct his mind from a struggle with theories long ago exploded, and may result in directing his efforts to things practical, and not without hope of attainment.This work is offered only to minds mechanically or mathematically inclined. It is not even hoped that it will interest people who prefer fiction to fact, nor people who read simply for idle entertainment. ABOUT AUTHOR: The author has no apology to offer for the production of this book. He has spent his life in environments that have brought him into constant contact with mechanics, artisans and laborers as well as professional men, engineers, chemists and technical experts of various types. He knows a great many men—young men, for the most part—are constantly working on the old, old problem of Perpetual Motion; that much money, and much time are being spent in search of a solution for that problem which all scientific and technical men tell us is impossible of solution.It is believed by the author that a classification and presentation of selected groups of the devices produced in the past by which it was by the inventor believed, self-motive power had been attained, will save much work in fields already thoroughly exploited.So far as the author knows no book on the subject has appeared since 1870. The various encyclopedias published contain articles on the subject, but they are necessarily brief, and not satisfying to young men who have become interested in the subject.