定理是数学的永久文献。

一个人与他想要的生活之间唯一的障碍往往只是尝试的意愿和相信它可能的信念。

The future of marine fisheries depends on collaboration between governments, businesses, and local communities.

"The great advantage of being a writer is that you can spy on people. You're there, listening to every word, but part of you is observing. Everything is useful to a writer, every scrap, even the longest and most boring of luncheon parties."