Not for the sake of our health, though it's often presented that way, but because it's an escape from the human anthill. It's an escape from our own competition, and our own dramas. And that's why ween joy looking at glaciers and oceans, and contemplating the Earth from outside its perimeters, etc. We like to feel in contact with something that is non-human, and that is so deeply important to us.

 释义：贫穷和地位低下不是什么耻辱的事，但因为贫穷和地位低下而向他人谄媚奉承，乞求得到施舍，就真是耻辱。

好的科学既需要创造力，也需要纪律性。