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.
The story is told by the dead, and the dead have no need for lies.
计算复杂性的美在于它能够根据问题的固有难度对问题进行分类。