To harm another is to harm oneself.

A system of morality that is based on relative emotional values is a mere illusion, a thoroughly vulgar conception that has nothing sound in it and nothing true.

Force always attracts men of low morality.

Performance of duty and observance of morality are convertible terms.

Slavery is founded in the selfishness of man's nature - opposition to it is [in] his love of justice.

Morality is of the highest importance-but for us, not for God.