Jealousy is a painful passion; yet without some share of it, the agreeable affection of love has difficulty to subsist in its full force and violence.

... superstitions, which, being unable to defend themselves on fair ground, raise these intangling brambles to cover and protect their weakness. Chased from the open country, these robbers fly into the forest, and lie in wait to break in upon every unguarded avenue of the mind, and overwhelm it with religious fears and prejudices. ... 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.

I cannot but bless the memory of Julius Caesar, for the great esteem he expressed for fat men and his aversion to lean ones.

No testimony is sufficient to establish a miracle, unless the testimony be of such a kind, that its falsehood would be more miraculous than the fact which it endeavors to establish.

When I hear that a man is religious, I conclude he is a rascal!

It is seldom, that liberty of any kind is lost all at once. Slavery has so frightful an aspect to men accustomed to freedom, that it must steal upon them by degrees, and must disguise itself in a thousand shapes, in order to be received.

Tis evident that all reasonings concerning matter of fact are founded on the relation of cause and effect, and that we can never infer the existence of one object from another, unless they be connected together, either mediately or immediately... Here is a billiard ball lying on the table, and another ball moving toward it with rapidity. They strike; and the ball which was formerly at rest now acquires a motion. This is as perfect an instance of the relation of cause and effect as any which we know, either by sensation or reflection.