在回报方面，时间是你的朋友。但在成本方面，时间是你的敌人。

We are all obsessed with the idea of the frontier, but it's a frontier that keeps receding.

Sustainability starts with small steps, but requires big vision.

Continuous improvement is not just a slogan, it should be our daily practice.

当没有人相信你的时候，你必须相信自己。

The magic number 150 suggests that the size of our social networks is limited by the size of our brains.

最重要的决定是你对世界的态度。

如果他们能让你问错问题，他们就不必担心答案了。

I think the most important thing in life is to be able to look at yourself in the mirror and feel good about who you are.

The end is in the beginning and yet you go on.

人类以可预测的方式非理性。