Everything is sold to skill and labor; and where nature furnishes the materials, they are still rude and unfinished, till industry, ever active and intelligent, refines them from their brute state, and fits them for human use and convenience.

Human Nature is the only science of man; and yet has been hitherto the most neglected.

... The idea of God, as meaning an infinitely intelligent, wise and good Being, arises from reflecting on the operations of our own mind, and augmenting, without limit, those qualities of goodness and wisdom.

No truth appears to me more evident than that beasts are endowed with thought and reason as well as men.

Where ambition can cover its enterprises, even to the person himself, under the appearance of principle, it is the most incurable and inflexible of passions

When men are most sure and arrogant they are commonly most mistaken, giving views to passion without that proper deliberation which alone can secure them from the grossest absurdities.

History is the discovering of the principles of human nature.