The Perfectly Wise Man Sees the Solution of the Paradox That Lies at the Heart of All Morality

Socrates is right, if by knowledge we mean wisdom, like true knowledge and not just sort of accumulation of more facts. You could do the right things, perhaps, accidentally, but you couldn't be rationally virtuous without a kind of wisdom. The perfectly wise man can attain his own happiness precisely in turning out from ourselves. A selfish pursuit of what is best for me isn't going to fulfill me as a rational creature.