The greatest problem for mathematicians now is probably the Riemann Hypothesis.
电影是关于画面内和画面外的东西。
To see a world in a grain of sand, and a heaven in a wild flower, hold infinity in the palm of your hand, and eternity in an hour.
Every human being has a purpose. I truly believe that.
21世纪最激动人心的突破将不是因为技术,而是因为人类概念的扩展。