"Whenever conditions arise in which a new kind of replicator can make copies of itself, the new replicators will tend to take over, and start a new kind of evolution of their own. Once this new evolution begins, it will in no necessary sense be subservient to the old."

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God, give us grace to accept with serenity the things that cannot be changed, courage to change the things which should be changed, and the wisdom to distinguish the one from the other. This prayer was first printed in a monthly bulletin of the Federal Council of Churches and has become enormously popular. It has been circulated in millions of copies.

— Reinhold Niebuhr