Moral codes adjust themselves to environmental conditions.

[H]istory assures us that civilizations decay quite leisurely.

Every form of government tends to perish by excess of its basic principle.

Liberty is a product of order.

Knowledge that does not generate achievement is a pale and bloodless thing, unworthy of mankind.

To give life a meaning, one must have a purpose larger than self.

If I were rich I would have many books, and I would pamper myself with bindings bright to the eye and soft to the touch, paper generously opaque, and type such as men designed when printing was very young. I would dress my gods in leather and gold, and burn candles of worship before them at night, and string their names like beads on a string.