One should never do wrong in return, nor mistreat any man, no matter how one has been mistreated by him.

It is never right to do wrong or to requite wrong with wrong, or when we suffer evil to defend ourselves by doing evil in return.

It is a disgrace to grow old through sheer carelessness before seeing what manner of man you may become by developing your bodily strength and beauty to their highest limit.

All that I know is nothing - I'm not even sure of that.

There are beds and tables in the world - plenty of them, are there not? But there are only two ideas or forms of them - one the idea of a bed, the other of a table.

True wisdom comes to each of us when we realize how little we understand about life, ourselves, and the world around us.

I am quite ready to acknowledge . . . that I ought to be grieved at death, if I were not persuaded that I am going to other gods who are wise and good (of this I am as certain as I can be of any such matters), and to men departed who are better than those whom I leave behind. And therefore I do not grieve as I might have done, for I have good hope that there is yet something remaining for the dead.