“I work for a Government I despise for ends I think criminal.”

“I find economics increasingly satisfactory, and I think I am rather good at it. I want to manage a railroad or organise a Trust or at least swindle the investing public”

“When somebody persuades me I am wrong, I change my mind.”

“I would rather be vaguely right than precisely wrong.”

“But my lord, when we addressed this issue a few years ago, didn't you argue the other side?" He said, "That's true, but when I get more evidence I sometimes change my mind. What do you do?”

“When the facts change, I change my mind - what do you do, sir?”

“When my information changes, I alter my conclusions. What do you do, sir?”