There are at bottom but two possible religions--that which rises in the moral nature of man, and which takes shape in moral commandments, and that which grows out of the observation of the material energies which operate in the external universe.

The secret of a person's nature lies in their religion and what they really believes about the world and their place in it.

History is a voice forever sounding across the centuries the laws of right and wrong. Opinions alter, manners change, creeds rise and fall, but the moral law is written on the tablets of eternity.

The moral system of the universe is like a document written in alternate ciphers, which change from line to line.

True greatness is the most ready to recognize and most willing to obey those simple outward laws which have been sanctioned by the experience of mankind.

A person possessed with an idea cannot be reasoned with.

Sacrifice is the first element of religion, and resolves itself in theological language into the love of God.