Attention to health is life greatest hindrance.

If a man says that it is right to give every one his due, and therefore thinks within his own mind that injury is due from a just man to his enemies but kindness to his friends, he was not wise who said so, for he spoke not the truth, for in no case has it appeared to be just to injure any one.

The first step in learning is the destruction of human conceit.

Not one of them who took up in his youth with this opinion that there are no gods ever continued until old age faithful to his conviction.

Shall we not, then, lay down a law, in the first place, that boys shall abstain altogether from wine till their eighteenth year, thereby teaching that it is wrong to add fire to fire, as through a funnel, pouring it into their body and soul before they proceed to the labor of life, thus exercising a caution as to the maddening habits of youth.

Boys should abstain from all use of wine until their eighteenth year, for it is wrong to add fire to fire.

...there are some who are naturally fitted for philosophy and political leadership, while the rest should follow their lead and let philosophy alone.