""Thank you, Hank," he said.
Rearden smiled. "I will repeat what you said when I thanked you, on our first meeting: 'If you understand that I acted for my own sake, you know that no gratitude is required.'"
"I will repeat," said Galt, "the answer you gave me: 'That is why I thank you.'"
- Atlas Shrugged, Ayn Rand, pg 1157