There are many Beths in the world, shy and quiet, sitting in corners till needed, and living for others so cheerfully that no one sees the sacrifices till the little cricket on the hearth stops chirping, and the sweet, sunshiny presence vanishes, leaving silence and shadow behind.

数学的研究是所有智力和精神进步不可或缺的基础。

The truth is often hidden, and it takes courage to uncover it.

海洋养育了我们，我们必须回报以保护。

"We're not in the business of making computers; we're in the business of making great software."

过去从未死去。它甚至还没有过去。