Principle is a passion for truth.

The love of liberty is the love of others; the love of power is the love of ourselves.

The greatest grossness sometimes accompanies the greatest refinement, as a natural relief.

Without the aid of prejudice and custom, I should not be able to find my way across the room.

If we are long absent from our friends, we forget them; if we are constantly with them, we despise them.

If the world were good for nothing else, it is a fine subject for speculation.

No act terminating in itself constitutes greatness.