He who knows only his own side of the case knows little of that.

Foresight of phenomenon and power over them depend on knowledge of their sequences, and not upon any notion we may have formed respecting their origin or inmost nature.

A man who has nothing for which he is willing to fight, nothing which is more important than his own personal safety, is a miserable creature and has no chance of being free unless made and kept so by the exertions of better men than himself.

Life has a certain flavor for those who have fought and risked all that the sheltered and protected can never experience.

All desirable things... are desirable either for the pleasure inherent in themselves, or as a means to the promotion of pleasure and the prevention of pain.

The only purpose for which power can be rightfully exercised over any member of a civilized community, against his will, is to prevent harm to others. His own good, either physical or moral, is not sufficient warrant.