在计算中,不变量是短暂的。
天文学的美在于它能够将我们与浩瀚的宇宙连接起来。
Man is the artisan of his own happiness.
井水越是甘甜,就越容易枯竭;树木越是高大,就越容易被砍伐。
The most successful businesses are those that make a difference.