I find nothing in fables more astonishing than my experience in every hour. One moment of a man's life is a fact so stupendous as to take the luster out of fiction.

There are no fixtures in nature. The universe is fluid and volatile. Permanence is but a word of degrees.

The powers of the Soul are commensurate with its needs.

A just thinker will allow full swing to his scepticism. I dip my pen in the blackest ink, because I am not afraid of falling into my inkpot.... We are of different opinions at different hours, but we always may be said to be at heart on the side of truth.

Thought is the seed of action; but action is as much its second form as thought is its first.

The less a man thinks or knows about his virtues, the better we like him.

Instead of making Christianity a vehicle of truth, you make truth only a horse for Christianity.