Science is the natural ally of religion.

The heresy of one age is the orthodox belief and "only infallible rule" of the nest.

I do not pretend to understand the moral universe; the arc is a long one, my eye reaches but little ways; I cannot calculate the curve and complete the figure by the experience of sight, I can divine it by conscience. And from what I see I am sure it bends towards justice.

Outward judgment often fails, inward judgment never.

Intellect is stronger than cannon.

To obtain a knowledge of duty, a man is not sent away, outside of himself, to ancient documents; for the only rule of faith a practice, the Word, is very nigh him, even in his heart, and by this word he is to try all documents.

Genius is the father of a heavenly line, but the mortal mother, that is industry.