[M]an... whatever the origin of his soul, if it is pure, noble, and lofty, it is a beautiful soul which dignifies the man endowed with it. - Julien Offray de La Mettrie

I reduce to two the systems of philosophy which deal with man's soul. The first and older system is materialism; the second is spiritualism.

[T]he, diverse states of the soul are always correlative with those of the body.

Ancient philosophy will always hold its own among those who are worthy to judge it, because it forms... a system that is solid and well articulated like the body, whereas all these scattered members of modern philosophy form no system.