At times I think and at times I am.

The folly of mistaking oneself for an oracle is built right into us.

We hope vaguely but dread precisely.

The mind has transformed the world, and the world is repaying it with interest. It has led man where he had no idea how to go.

Books have the same enemies as people: fire, humidity, animals, weather, and their own content.

History is the most dangerous product evolved from the chemistry of the intellect. ...History will justify anything. It teaches precisely nothing, for it contains everything and furnishes examples of everything.

Sometimes I think and other times I am.