History is not just the story of bad people doing bad things. It's also the story of good people doing nothing.

我从不回头看。我期待下一个挑战。

The greatest threat to our planet is the belief that someone else will save it.

The Eskimos had fifty-two names for snow because it was important to them: there ought to be as many for love.

The concept of infinity is both fascinating and perplexing.