How can I be substantial if I do not cast a shadow? I must have a dark side also If I am to be whole.

As far as we can discern, the sole purpose of human existence is to kindle a light of meaning in the darkness of mere being.

Mistakes are, after all, the foundations of truth, and if a man does not know what a thing is, it is at least an increase in knowledge if he knows what it is not.

Even a happy life cannot be without a measure of darkness, and the word happy would lose its meaning if it were not balanced by sadness.