Plato
Love is a serious mental disease. Wise men speak because they have something to say; fools, because they have to say something. Only the dead have seen the end of war.
Socrates
Worthless people live only to eat and drink; people of worth eat and drink only to live. Be as you wish to be seen. I cannot teach anybody anything, I can only make them think.
Socrates
True knowledge exists in knowing that you know nothing. When the debate is over, slander becomes the tool of the loser. To find yourself, think for yourself. From the deepest desires often come the deadliest hate.