生活的目的是保持生命。观看自然界中的任何动物 - 所有试图做的就是保持活力。它不在乎信念或哲学。每当任何动物的行为与其存在的现实脱节时，它就会变得巨大。
(The purpose of life is to stay alive. Watch any animal in nature--all it tries to do is stay alive. It doesn't care about beliefs or philosophy. Whenever any animal's behavior puts it out of touch with the realities of its existence, it becomes exinct.)