Desire and happiness cannot live together.

The soul that companies with virtue is like an ever-flowing source. It is a pure, clear, and wholesome draught, sweet, rich and generous of its store, that injures not, neither destroys.

Men are disturbed not by the things that happen, but by their opinion of the things that happen.

You may be always victorious if you will never enter into any contest where the issue does not wholly depend upon yourself.

It was the first and most striking characteristic of Socrates never to become heated in discourse, never to utter an injurious or insulting word -- on the contrary, he persistently bore insult from others and thus put an end to the fray.

To know that you do not know and to be willing to admit that you do not know without sheepishly apologizing is real strength and sets the stage for learning and progress in any endeavor.

When men are unhappy, they do not imagine they can ever cease to be so; and when some calamity has fallen on them, they do not see how they can get rid of it. Nevertheless, both arrive; and the gods have ordered it so, in the end men seek it from the gods