In this light it will be clear that consciousness is no mere phosphorescent scum upon the foundations of fire and rock — a late addition to a world which is essentially unfeeling and mineral. Consciousness is rather the unfolding, the "evolution," of what has always been hidden in the heart of the primordial universe of stars.

Nature, Man, and Woman - Part II, Chapter 8 (p. 186), Vintage Books, 1970