If you cannot attain knowledge without torturing a dog, you must do without knowledge.

I do not, like the Fundamentalists, believe that creation stopped six thousand years ago after a week of hard work. Creation is going on all the time.

In the arts of life main invents nothing; but in the arts of death he outdoes Nature herself, and produces by chemistry and machinery all the slaughter of plague, pestilence and famine. ... There is nothing in Man's industrial machinery but his greed and sloth: his heart is in his weapons.

I do not want to make my stomach a graveyard of dead animals.

If more than 10% of the people like a painting, you can be sure it's bad.

Only in the problem play is there any real drama, because drama is no mere setting up of the camera to nature: it is the presentation in parable of the conflict between Man's will and his environment: in a word, of problem.

Men are wise in proportion, not to their experience, but to their capacity for experience.