Life is a slope.As long as you're going up you're always looking towards the top and you feel happy, but when you reach it, suddenly you can see the road going downhill and death at the end of it all. It's slow going up and quick going down.
每一项科学发现都应该以其对人类福祉的贡献来衡量。
I want my fans to know how much I appreciate them.