可持续性不再是选择，而是我们对后代的责任。

在数学中，从困惑到清晰的旅程是最有价值的体验。

There is a stubbornness about me that never can bear to be frightened at the will of others. My courage always rises at every attempt to intimidate me.

翻译：两个人心意相同，就像锋利的刀剑可以斩断金属；心意相同的话语，犹如兰花一样芳香。

"The dead are never far from us. They're in our hearts and on our minds and in the end all that matters is love."

每一本书都是一次旅行。

你不尝试，就100%不会成功。