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.

"Courage is not the absence of fear, but the will to act in spite of it."

度过生活的唯一方法就是笑着度过。你要么笑，要么哭。我更喜欢笑。哭会让我头疼。