Ayn Rand, “The Fountainhead”
I don’t care whether you agree with me or not

— You know, — he said, — you would sound much more convincing if you spoke as if you cared whether I agreed with you or not.

— That’s true, — said Roark. — I don’t care whether you agree with me or not. — He said it so simply that it did not sound offensive, it sounded like the statement of a fact which he noticed, puzzled, for the first time.

— You don’t care what others think — which might be understandable. But you don’t care even to make them think as you do?

— No.

— But that’s… that’s monstrous.

— Is it? Probably. I couldn’t say.