These questions, so long as they remain with the Muses, may very well be unaccompanied with severity, for where there is no other end of contemplation and inquiry but that of pastime alone, the understanding is not oppressed; but after the Muses have given over their riddles to Sphinx,—that is, to practise, which urges and impels to action, choice and determination,—then it is that they become torturing, severe and trying.展开