Wisdom is knowing what you don't know.

If thou continuous to take delight in idle argumentation thou mayest be qualified to combat with the sophists, but will never know how to live with men.

It is a base thing for a man to wax old in careless self-neglect before he has lifted up his eyes and seen what manner of man he was made to be, in the full perfection of bodily strength and beauty. But these glories are withheld from him who is guilty of self-neglect, for they are not wont to blaze forth unbidden.

To fear death is nothing other than to think oneself wise when one is not. For it is to think one knows what one does not know. No one knows whether death may not even turn out to be the greatest blessings of human beings. And yet people fear it as if they knew for certain it is the greatest evil.

No citizen has any right to be an amateur in the matter of physical training; it is part of his profession as a citizen to keep himself in good condition... [It is] a disgrace for a man to grow old without seeing the beauty and the strength of which his body is capable.

The soul is pure when it leaves the body and drags nothing bodily with it, by virtue of having no willing association with the body in life but avoiding it.......Practicing philosophy in the right way is a training to die easily.

Are you not ashamed of heaping up the greatest amount of money and honor and reputation, and caring so little about wisdom and truth and the greatest improvement of the soul?