Survival can be summed up in three words—never give up. That’s the heart of it really. Just keep trying.
生存可以总结为三个字——永不放弃。这就是它的核心。只要继续努力。
今天很残酷，明天更残酷，后天很美好，但绝对大部分是死在明天晚上，所以每个人不要放弃今天。
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.