理解就是知道什么导致什么。

你永远是一个有价值、值得尊敬的人——不是因为任何人这么说，不是因为你成功了，不是因为你赚了很多钱——而是因为你决定相信这一点，没有其他原因。

大脑不是通用计算机，而是为解决特定适应性问题而设计的专门神经回路的集合。

True spirituality is about nothing else than learning to die.

The present state of the system of nature is evidently a resultant 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.