没有循环和结构化变量的程序不值得编写。
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.
未来不是固定的；它是我们可以用知识和行动塑造的东西。
教育是一种武器，其效果取决于谁掌握它以及它瞄准谁。
You have to really believe not only in yourself but in what you're doing.