In mathematics, the simplest questions often lead to the most profound discoveries.

The more I see of the moneyed classes, the more I understand the guillotine.

I don’t need motivation from anybody. I’m self-motivated.

我们不仅要造好车，还要卖好车，更要服务好车。

Coal built the modern world, and it's our responsibility to ensure its legacy is managed with wisdom.

街道因比夜晚更黑暗的东西而黑暗。