The study of mathematics is the indispensable basis for all intellectual and spiritual progress.

我是一个美国黑人，我为我的种族感到骄傲。我为自己是谁感到骄傲。我有许多自豪和尊严。

I’m not perfect, but I’m always me.

"The number one benefit of information technology is that it empowers people to do what they want to do."

The mind is not a passive mirror of the world but an active participant in constructing reality.

The greatest threat to our forests is not logging, but indifference.

语言是作家最后的祖国。