Plato,
The Dialogues of Plato
(1892)
“ Not universal knowledge, but the knowledge of good and evil, is really required by man. Monster! I said; you have been carrying me round in a circle, and all this time hiding from me the fact that the life according to knowledge is not that which makes men act rightly and be happy, not even if knowledge include all the sciences, but one science only, that of good and evil. For, let me ask you, Critias, whether, if you take away this, medicine will not equally give health, and shoemaking equally produce shoes, and the art of the weaver clothes?— Charmides.Socrates, Critias. ”
