可持续的世界始于可持续的选择。

Happiness ain't a thing in itself --- it's only a contrast with something that ain't pleasant. That's all it is.

The reward of seeing the joy on the faces of the parents is immense.

I’m not perfect, and I don’t pretend to be.

"Love is the only force capable of transforming an enemy into a friend." 《爱在流放地》

Facts do not speak for themselves. They speak for or against competing theories. Facts divorced from theories or visions are mere isolated curiosities.