自然界的现象，无论是机械的、化学的还是生命的，几乎完全在于通过空间、活力和热之间的持续相互转化。

Mathematics is not just about numbers, equations, computations, or algorithms: it is about understanding.

Your passion should be greater than your fears.

The only way to learn a new programming language is by writing programs in it.

The most glorious moments in your life are not the so-called days of success, but rather those days when out of dejection and despair you feel rise in you a challenge to life, and the promise of future accomplishment.

解释：不可以不知道活着的乐趣，也不可以不知道虚度光阴的担忧。