One form of insanity bears the name curiosity. - Charles Sheffield

Professor Lang's important work, with all due respect, does not answer that question." The knife, sliding in hidden behind the compliment. "With all due respect" meant "with no respect at all.

“I wonder why somebody would go to all that trouble to make a complete fool of himself.”
“Come on, Gina, we both know why.”
“Oh, I guess you’re right. Money will always do it.”
Of course.

He was still young enough to hate looking like a fool more than anything in the world.