The only way to do great work is to love what you do.

追求知识不仅是心灵的旅程，也是心灵的旅程。

我不喜欢安逸，我喜欢挑战自己。

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.