The only thing we are naturally afraid of is pain, or loss of pleasure. And because these are not annexed to any shape, colour, or size of visible objects, we are frighted of none of them, till either we have felt pain from them, or have notions put into us that they will do us harm.

Understanding like the eye; whilst it makes us see and perceive all things, takes no notice of itself; and it requires art and pains to set it at a distance and make it its own subject.

A sound mind in a sound body is a short but full description of a happy state in this world.

No peace and security among mankind-let alone common friendship-can ever exist as long as people think that governments get their authority from God and that religion is to be propagated by force of arms.

All men are liable to error; and most men are, in many points, by passion or interest, under temptation to it.

I have always thought the actions of men the best interpreters of their thoughts.

There is frequently more to be learned from the unexpected questions of a child than the discourses of men.