We have already had occasion to point out that education is the method by which society inculcates in its younger members habits which are regarded as socially beneficial. In its broadest sense the whole social environment is an individual's education. And it is an education chiefly through experience with other people, discovering what they will and will not tolerate, what they will cherish and what they will condemn. The elaborate paraphernalia and rites of fashion in clothes exist chiefly by virtue of their value as means of securing diffuse notice and approval. The primitive sex display is now a minor cause: women obviously dress for other women's eyes. Much the same is true of subservience to fashions in furniture, food, manners, morals, and religion. The institution of tipping, which began, perhaps, in kindliness and was fostered by economic self-interest, is now well-nigh impregnable because no man is brave enough to withstand the scorn of a line of lackeys whom he heartily despises, or of a few onlookers whom he will never see again.[2] [Footnote 2: Thorndike: _loc. cit._, p. 32.] One of the things we mean when we say a man is worldly-wise, shrewd, knows human nature, is that he knows what will win people's admiration, and knows, moreover, to distinguish between that which they publicly condemn and secretly approve, and _vice versa_. In the passage quoted above Plato was trying to show how the young Athenian acquired not wisdom itself, but "worldly wisdom," the ability to get along in affairs. This he learned not from the professional teachers, but from the Athenian public, with whose approvals and disapprovals he came in daily contact.