"The truth is not always the most important thing; sometimes, what matters is what people believe to be true."

The best investment you can make is in yourself.

In distributed systems, the key challenge is achieving consensus among unreliable components.

Passion is the fuel that keeps you moving forward.

地理学是关于地方的科学，而不是关于人的科学。

Liberal democracy may constitute the "end point of mankind's ideological evolution" and the "final form of human government," and as such constituted the "end of history."

改变始于愿景，但坚持才能将其变为现实。

相信有时是件可怕的事。

 消灭一个错误，其贡献等同于、有时甚至超过建立一条新真理或新事实。