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.

数学不仅仅是关于数字、方程、计算或算法：它是关于理解的。

永远愿意学习，因为你停止学习的那一刻就是你停止成长的那一刻。

故事的力量在于它能够激发改变。