The only true wisdom is in knowing you know nothing.
True wisdom comes to each of us when we realize how little we understand about life, ourselves, and the world around us.
I am the wisest man alive, for I know one thing, and that is that I know nothing.
One who is injured ought not to return the injury, for on no account can it be right to do an injustice; and it is not right to return an injury, or to do evil to any man, however much we have suffered from him.
Be slow to fall into friendship; but when thou art in, continue firm and constant.
I cannot teach anybody anything. I can only make them think