No More Learning

When we asked why, since there is but one form of creation, some animals are regarded as unclean for eating, and others unclean even to the touch (for though the law is scrupulous on most points, it is           scrupulous on such [130] matters as these) he began his reply as follows: 'You observe,' he said, 'what an effect our modes of life and our associations produce upon us; by associating with the bad, men catch their depravities and become miserable throughout their life; but if they live with the wise and prudent, they find [131] the means of escaping from ignorance and amending their lives.