We humans are one among millions of separate species who live in a world burgeoning, overflowing with life. And yet most species that ever were are no more. After flourishing for one hundred fifty million years, the dinosaurs became extinct. Every last one. No species is guaranteed its tenure on this planet.
The hard truth seems to be this: We live in a vast and awesome universe in which, daily, suns are made and worlds are destroyed, where humanity clings to an obscure clod of rock. The significance of our lives and our fragile realm derives from our own wisdom and courage. We are the custodians of life’s meaning. We would prefer it to be otherwise, of course, but there is no compelling evidence for a cosmic Parent who will care for us and save us from ourselves. It is up to us."