There is something in animals beside the power of motion. They are not machines; they feel.

Power ought to serve as a check to power.

There are only two cases in which war is just: first, in order to resist the aggression of an enemy, and second, in order to help an ally who has been attacked.

False happiness renders men stern and proud, and that happiness is never communicated. True happiness renders them kind and sensible, and that happiness is always shared.

The false notion of miracles comes of our vanity, which makes us believe we are important enough for the Supreme Being to upset nature on our behalf.

One more organ or one less in our body would give us a different intelligence. In fact, all the established laws as to why our body is a certain way would be different if our body were not that way.

Not to be loved is a misfortune, but it is an insult to be loved no longer.