The partisan when he is engaged in a dispute, cares nothing about the rights of the question, but is anxious only to convince his hearers of his own assertions.

Man's life is like a drop of dew on a leaf.

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

Admitting one's ignorance is the first step in acquiring knowledge.

All of the wisdom of this world is but a tiny raft upon which we must set sail when we leave this earth. If only there was a firmer foundation upon which to sail, perhaps some divine word.

I am that gadfly which God has attached to the state, and all day long and in all places am always fastening upon you, arousing and persuading and reproaching you.

Nothing very new. By taking good care of yourselves you are of service to me and my family as well as yourselves, no matter what you do, even if you don't think so at present. But if you neglect yourselves and are unwilling to live, as though following tracks, in accordance with what we now say and have said in the past too, then no matter how much or how seriously you agree with me at present you will accomplish next to nothing.