We don't inherit the earth from our ancestors; we borrow it from our children. Let's return it better.

忠于你的热情。

我不是一个喜欢传统的人。

It seems to me that the natural world is the greatest source of excitement; the greatest source of visual beauty; the greatest source of intellectual interest. It is the greatest source of so much in life that makes life worth living.

科学与艺术属于整个世界，在它们面前，民族的障碍都消失了。