我们都在寻找某样东西,即使我们不知道它是什么。
可持续性不是一种选择,而是我们对后代的责任。
Those who dream by day are cognizant of many things which escape those who dream only by night.
The language of mathematics is universal, transcending cultural and linguistic barriers.
When you change the way you look at things, the things you look at change.