In the practical use of our intellect, forgetting is as important as remembering.

Philosophy is at once the most sublime and the most trivial of human pursuits.

Marvelous as may be the power of my dog to understand my moods, deathless as his affection and fidelity, his mental state is as unsolved a mystery to me as it was to my remotest ancestor.

A winner's attitude: it may be difficult, but it's possible. A loser's attitude: It may be possible, but it's too difficult.

Impulse without reason is enough, and reason without impulse is a poor makeshift.

Man alone of all the creatures of earth can change his own pattern. Man alone is the architect of his own destiny.

The discovery of the power of our thoughts will prove to be the most important discovery of our time