The first duty of an historian is to be on his guard against his own sympathies...

Truth only smells sweet forever, and illusions, however innocent, are deadly as the canker worm.

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.

Morality, when vigorously alive, sees farther than intellect, and provides unconsciously for intellectual difficulties.

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

We live merely on the crust or rind of things.

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.