The army ages men sooner than the law and philosophy; it exposes them more freely to germs, which undermine and destroy, and it shelters them more completely from thought, which stimulates and preserves.

Man ... can go up against gravitation in a balloon, and why should he not hope that ultimately he may be able to stop or accelerate his drift along the Time-Dimension, or even turn about and travel the other way.

While there is a chance of the world getting through its troubles, I hold that a reasonable man has to behave as though he were sure of it. If at the end your cheerfulness in not justified, at any rate you will have been cheerful.

Cynicism is humor in ill health.

Let your love be stronger than your hate or anger. Learn the wisdom of compromise, for it is better to bend a little than to break.

Suddenly, like a thing falling upon me from without, came fear.

One of the darkest evils of our world is surely the unteachable wildness of the Good.