It is difficult to get a man to understand something when his salary depends upon his not understanding it.

All art is propaganda. It is universally and inescabably propaganda; sometimes unconsciously, but often deliberately, propaganda.

Turn over the pages of history and read the damning record of the church's opposition to every advance in every field of science. . . .

They were the triumphant and insolent possessors; they had a hall, and a fire, and food and clothing and money, and so they might preach to hungry men, and the hungry men must be humble and listen. They were trying to save their souls- and who but a fool could fail to see that all that was the matter with their souls was that they had not managed to get a decent existence for their bodies?

I just put on what the lady says. I've been married three times, so I've had lots of supervision.

Pessimism is mental disease. It means illness in the person who voices it, and in the society which produces that person.

It was all so very businesslike that one watched it fascinated. It was pork-making by machinery, pork-making by applied mathematics. And yet somehow the most matter-of-fact person could not help thinking of the hogs; they were so innocent, they came so very trustingly; and they were so very human in their protests - and so perfectly within their rights! They had done nothing to deserve it; and it was adding insult to injury, as the thing was done here, swinging them up in this cold-blooded, impersonal way, without pretence at apology, without the homage of a tear.