To Xeniades, Who Had Purchased Diogenes At

No Man Is Hurt But By Himself.

Self-taught Poverty Is A Help Toward Philosophy, For The Things Which Philosophy Attempts To Teach By Reasoning, Poverty Forces Us To Practice.

When Two Friends Part They Should Lock Up Each Other's Secrets And Exchange Keys. The Truly Noble Mind Has No Resentments.

I Am Not An Athenian Or A Greek, But A Citizen Of The World.

If You Are To Be Kept Right, You Must Possess Either Good Friends Or Red-hot Enemies. The One Will Warn You, The Other Will Expose You.