To keep young kids behaving on a car road trip， have a bag of their favorite candy and throw a piece out the window each time they misbehave.

I am the happiest creature in the world. Perhaps other people have said so before, but not one with such justice. I am happier even than Jane; she only smiles, I laugh.

历史不仅仅是过去的记录，也是反映现在的镜子。

The resources we extract must be matched by the value we create for society.