Only those who live on the labor of the ignorant are the enemies of science. Real love and real religion are in no danger from science. The more we know the safer all good things are.

If a man would follow, today, the teachings of the Old Testament, he would be a criminal. If he would follow strictly the teachings of the New, he would be insane.

To avoid pain we must know the conditions of health. For the accomplishment of this end we must rely upon investigation instead of faith, upon labor in place of prayer. Most misery is produced by ignorance. Passions sow the seeds of pain.

I have had some trouble in regarding evil as having been intended by infinite Goodness.

If I owe Smith ten dollars and God forgives me, that doesn't pay Smith.

Nothing could be more idiotic and absurd than the doctrine of the trinity.

Let us account for all we see by the facts we know. If there are things for which we cannot account, let us wait for light. To account for anything by supernatural agencies is, in fact to say that we do not know. Theology is not what we know about God, but what we do not know about Nature.