做给别人看很简单，做给自己看却很难。

唯一确定的是不确定性。

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.

发现的快乐无疑是推动科学前进的动力。

We want to make sure Chinese babies can drink world-class milk powder.