用你所拥有的,在你所在的地方,做你能做的事。
石头或许坚硬,但我们的决心必须更加坚定。
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.