All men have opinions, but few think.

That the discovery of this great truth, which lies so near and obvious to the mind, should be attained to by the reason of so veryfew, is a sad instance of the stupidity and inattention of men, who, though they are surrounded with such clear manifestations of the Deity, are yet so little affected by them, that they seem as it were blinded with excess of light.

Of all men living [priests] are our greatest enemies. If it were possible, they would extinguish the very light of nature, turn the world into a dungeon, and keep mankind for ever in chains and darkness.

All that stock of arguments [the skeptics] produce to depreciate our faculties, and make mankind appear ignorant and low, are drawn principally from this head, to wit, that we are under an invincible blindness as to the true and real nature of things.

It is a mistake, to think the same thing affects both sight and touch. If the same angle or square, which is the object of touch,be also the object of vision, what should hinder the blind man, at first sight, from knowing it?

The table I write on I say exists ... meaning thereby that if I was in my study I might perceive it, or that some other spirit actually does perceive it.

That thing of hell and eternal punishment is the most absurd, as well as the most disagreeable thought that ever entered into the head of mortal man.