If we knew that god exists, such knowledge would make morality impossible. For, if we acted morally from fear or fright, or confident of a reward, then this would not be moral. It would be enlightened selfishness.

Imagination is a powerful agent for creating, as it were, a second nature out of the material supplied to it by actual nature.

Freedom is independence of the compulsory will of another, and in so far as it tends to exist with the freedom of all according to a universal law, it is the one sole original inborn right belonging to every man in virtue of his humanity.

All perception is colored by emotion.

If justice perishes, human life on Earth has lost its meaning.

It is never too late to become reasonable and wise.

If we could see ourselves... as we really are, we should see ourselves in a world of spiritual natures, our community which neither began at birth nor will end with the death of the body.