Safety isn't just a policy - it's a culture that must permeate every level of our organization.

Representation of the world, like the world itself, is the work of men; they describe it from their own point of view, which they confuse with the absolute truth.

不要害怕承担经过计算的风险；真正的成长就在那里。

Simplicity is the ultimate sophistication.

The task of the modern educator is not to cut down jungles, but to irrigate deserts.