世界是你内心的投射。你抱怨生活不公，往往是因为内心失衡；你觉得世界美好，是因为你心中有光。改变心态，就能改变你看世界的角度。

理论物理学是一种形而上学。

国际政治是一个残酷而无情的舞台，各国不断努力最大化自己的权力和安全。

The more one forgets himself—by giving himself to a cause to serve or another person to love—the more human he is.

Technologists should have a sense of awe, because code can change the world.