Before you try to convince anyone else be sure you are convinced, and if you cannot convince yourself, drop the subject.
Opposition inflames the enthusiast, never converts him.
A long dispute means that both parties are wrong.
I am not arguing with you – I am telling you.
What occasions the greater part of the world’s quarrels? Simply this: Two minds meet and do not understand each other in time enough to prevent any shock of surprise at the conduct of either party.
The difficult part in an argument is not to defend one’s opinion but rather to know it.
The most savage controversies are those about matters as to which there is no good evidence either way.
The people to fear are not those who disagree with you, but those who disagree with you and are too cowardly to let you know.
How come nobody wants to argue with me? Is it because I’m always so right?
The great mind knows the power of gentleness, only tries force because persuasion fails.