“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?”

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

“Capitalism is the astounding belief that the most wickedest of men will do the most wickedest of things for the greatest good of everyone.”

“How can I accept the Communist doctrine, which sets up as its bible, above and beyond criticism, an obsolete textbook which I know not only to be scientifically erroneous but without interest or application to the modern world? How can I adopt a creed which, preferring the mud to the fish, exalts the boorish proletariat above the bourgeoisie and the intelligentsia, who with all their faults, are the quality of life and surely carry the seeds of all human achievement? Even if we need a religion, how can we find it in the turbid rubbish of the red bookshop? It is hard for an educated, decent, intelligent son of Western Europe to find his ideals here, unless he has first suffered some strange and horrid process of conversion which has changed all his values.”

“A study of the history of opinion is a necessary preliminary to the emancipation of the mind.”