Art attracts us only by what it reveals of our most secret self.

The factor in human life provocative of a noble discontent is the gradual emergence of a sense of criticism, founded upon appreciation of beauty, and of intellectual distinction, and of duty.

Seek simplicity but distrust it.

The only use of knowledge of the past is to equip us for the present.

The real history does not get written, because it is not in people's brains but in their nerves and vitals.

Knowledge keeps no better than fish.

The point about zero is that we do not need to use it in the operation of daily life. No one goes out to buy zero fish.