Every human life contains a potential. It that potential is not fulfilled, that life was wasted. - Carl Jung

To be quite accurate, human nature is simply what it is; it has its dark and its light sides. The sum of all colours is grey - light on a dark background or dark on light.

One could say, with a little exaggeration, that the persona is that which in reality one is not, but which oneself as well as others think one is.

When we assume God to be a guiding principle—well, sure enough, a god is usually characteristic of a certain system of thought or morality. For instance, take the Christian God, the summum bonum: God is love, love being the highest moral principle; and God is spirit, the spirit being the supreme idea of meaning. All our Christian moral concepts derive from such assumptions, and the supreme essence of all of them is what we call God.