Profundity of thought belongs to youth, clarity of thought to old age.

Sit as little as possible; give no credence to any thought that was not born outdoors while one moved about freely - in which the muscles are not celebrating a feast, too: all prejudices come from the intestines. The sedentary life - as I have said once before - is the real sin against the holy spirit.

After all, a man's Life must be nailed to a cross either of Thought or Action.

All thought is a feat of association; having what's in front of you bring up something in your mind that you almost didn't know you knew.

With every experience, you alone are painting your own canvas, thought by thought, choice by choice.

Faith is the mightiest force that man has at his command. It impels human beings to greatness in thought and word and deed.