Changes in the structure of society are not brought about solely by massive engines of doctrine. The first flash of insight which persuades human beings to change their basic assumptions is usually contained in a few phrases.

We can hardly imagine a state of mind in which all material objects were regarded as symbols of spirtual truths or episodes in sacred history. Yet, unless we make this effort of imagination, Medieval art is largely incomprehensible.

I believe in courtesy, the ritual by which we avoid hurting other people's feelings by satisfying our own egos.

Energy is eternal delight; and from the earliest times human beings have tried to imprison it in some durable hieroglyphic. It is perhaps the first of all the subjects of art.

No nude, however abstract, should fail to arouse in the spectator some vestige of erotic feeling, even if it be only the faintest shadow - and if it does not do so it is bad art and false morals.

I just don't think the moon is going to be an adequate substitute for the fact that we haven't addressed ourselves to clearing up the slums.

In time of war all countries behave equally badly, because the power of action is handed over to stupid and obstinate men.