I don't say that bodies like flint, which are commonly called inanimate, have perceptions and appetition; rather they have something of that sort in them, as worms are in cheese.

What is is what must be.

I hold that the mark of a genuine idea is that its possibility can be proved, either a priori by conceiving its cause or reason, or a posteriori when experience teaches us that it is in fact in nature.

It is unworthy of excellent men to lose hours like slaves in the labor of calculation which could be relegated to anyone else if machines were used.

Philosophy consists mostly of kicking up a lot of dust and then complaining that you can't see anything.

To love is to be delighted by the happiness of someone, or to experience pleasure upon the happiness of another. I define this as true love.

There is nothing waste, nothing sterile, nothing dead in the universe; no chaos, no confusions, save in appearance.