When one man speaks to another man who doesn't understand him, and when a man who's speaking no longer understands, it's metaphysics.
VoltaireIt would be easier to subjugate the entire universe through force than the minds of a single village.
VoltaireWe admit, in geometry, not only infinite magnitudes, that is to say, magnitudes greater than any assignable magnitude, but infinite magnitudes infinitely greater, the one than the other. This astonishes our dimension of brains, which is only about six inches long, five broad, and six in depth, in the largest heads.
Voltaire