人比自己想象的要坚强。只是没有意识到这种坚强。

儿童不会自己判断自己，他是以别人对他的态度来判断自己的。

工具变量的美妙之处在于它们让我们以新的视角看世界。

Health is not a privilege of the rich, but a vulnerability of the poor.

Innovation is not just about technology; it's about changing the way we think and operate.

可持续性还不够——我们需要再生。

A work of art is complete when nothing can be added or taken away without damaging it.

最大的智慧是认识自己。