All mankind... being all equal and independent, no one ought to harm another in his life, health, liberty or possessions.

Slavery is so vile and miserable an Estate of Man, and so directly opposite to the generous Temper and Courage of our Nation; that 'tis hardly to be conceived, that an Englishman, much less a Gentleman, should plead for't.

A sound mind in a sound body, is a short, but full description of a happy state in this World: he that has these two, has little more to wish for; and he that wants either of them, will be little the better for anything else.

Books seem to me to be pestilent things, and infect all that trade in them...with something very perverse and brutal. Printers, binders, sellers, and others that make a trade and gain out of them have universally so odd a turn and corruption of mind that they have a way of dealing peculiar to themselves, and not conformed to the good of society and that general fairness which cements mankind.

It is practice alone that brings the powers of the mind, as well as those of the body, to their perfection.

I esteem it above all things necessary to distinguish exactly the business of civil government from that of religion and to settle the just bounds that lie between the one and the other.

Reason is natural revelation, whereby the eternal father of light, and fountain of all knowledge, communicates to mankind that portion of truth which he has laid within the reach of their natural faculties: revelation is natural reason enlarged by a new set of discoveries communicated by God. . . .