The present state of the system of nature is evidently a consequence of what it was in the preceding moment, and if we conceive of an intelligence which at a given instant comprehends all the relations of the entities of this universe, it could state the respective positions, motions, and general effects of all these entities at any time in the past or future.
不要为未来担忧，不要为过去哭泣。
每当一座煤电厂关闭，美国的一部分心脏也随之关闭。