The true measure of our success is how we improve global health outcomes.

We begin with the hypothesis that any subject can be taught effectively in some intellectually honest form to any child at any stage of development.

我不相信任何事，这是我唯一相信的事。

你无法管理你无法衡量的东西。

没有什么比心里藏着一个未讲的故事更痛苦的了。