The dinosaurs became extinct because they didn't have a space program. And if we become extinct because we don't have a space program, it'll serve us right!

理解计算的极限需要深入研究支撑算法复杂性的数学基础。

A chain is no stronger than its weakest link, and life is after all a chain.

个人的就是普遍的，普遍的也是个人的。

我不能没有书。

"Don't watch the clock; do what it does. Keep going."

衡量矿业公司成功的真正标准是其如何平衡利润与环境责任。

Keep your face always toward the sunshine, and shadows will fall behind you.

没有所谓的应用科学，只有科学的应用。