Book 4
2.28
Furthermore, those who know what they do win fame and honour by attaining their ends. Their equals are glad to have dealings with them; and those who miss their objects look to them for counsel, look to them for protection, rest on them their hopes of better things, and for all these reasons love them above all other men.
2.29
But those who know not what they do, choose amiss, fail in what they attempt and, besides incurring direct loss and punishment thereby, they earn contempt through their failures, make themselves ridiculous and live in dishonour and humiliation.And the same is true of communities. You find that whenever a state, in ignorance of its own power, goes to war with a stronger people, it is exterminated or loses its liberty.
2.30
Socrates, answered Euthydemus, you may rest assured that I fully appreciate the importance of knowing oneself. But where should the process of self-examination begin? I look to you for a statement, please.
2.31
Well, said Socrates, I may assume, I take it, that you know what things are good and what are evil?Of course, for if I don’t know so much as that, I must be worse than a slave.Come then, state them for my benefit.Well, that’s a simple matter. First health in itself is, I suppose, a good, sickness an evil. Next the various causes of these two conditions — meat, drink, habits — are good or evil according as they promote health or sickness.