Tell me what you feel in your room when the full moon is shining in upon you and your lamp is dying out, and I will tell you how old you are, and I shall know if you are happy.
For purposes of action nothing is more useful than narrowness of thought combined with energy of will.
Conquering any difficulty always gives one a secret joy, for it means pushing back a boundary-line and adding to one's liberty.
The man who has no inner-life is a slave to his surroundings.
Self-interest is but the survival of the animal in us. Humanity only begins for man with self-surrender.
Uncertainty is the refuge of hope.
