The deterioration of every government begins with the decay of the principles on which it was founded.

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

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.

The less men think, the more they talk.

We receive three educations, one from our parents, one from our school-masters, and one from the world. The third contradicts all that the first two teach us.

Life was given to me as a favor, so I may abandon it when it is one no longer.

Trade is the best cure for prejudice.