You cannot hope to build a better world without improving the individuals. To that end, each of us must work for our own improvement and, at the same time, share a general responsibility for all humanity, our particular duty being to aid those to whom we think we can be most useful.

"The only thing that is truly eternal is the human spirit."

任何在科学探索中追求即时实用价值的人，可以确信他的追求是徒劳的。

唯一安全的事情就是冒险。

基础结构决定论原则认为，社会文化系统的结构受人口、技术和环境相互作用的影响最为强烈。

The pursuit of happiness is not about feeling good all the time, but about striving toward meaningful goals.

数学的美在于它让我们看到世界上不立即显现的模式和结构。