The key to solving complex problems is breaking them down into simpler ones.
地球撞上太阳还需要1千百万百万百万百万年,所以眼下没有啥好担心的!
As in geometry the most natural way of beginning is from a mathematical point, so is the same method in observations and natural history the most genuine, simple, and instructive.
人生不可能毫无失败,除非活得如此谨慎,那还不如根本没活过。