James Lovelock

Life clearly does more than adapt to the Earth. It changes the Earth to its own purposes. Evolution is a tightly coupled dance, with life and the material environment as partners. From the dance emerges the entity Gaia.

I believe that the day one stops being spiritual, one ends up being religious. I live by the adage that the only certainty in life is death. We should, therefore, learn to live for the day and be content.