The progress of mathematics is measured by the number of problems it can solve.

我们谷物生产成功的真正标准不仅在于产量，还在于我们如何平衡生产力与环境管理。

I choose a lazy person to do a hard job. Because a lazy person will find an easy way to do it.

Time is your friend; impulse is your enemy.

最美丽的艺术作品是必要性和自由完美平衡的作品。