A red rose is not selfish because it wants to be a red rose. It would be horribly selfish if it wanted all the flowers in the garden to be both red and roses.

In string theory, all particles are vibrations of a tiny supersymmetric string.

韩寒：“中国文学没有起色的很大原因是有这些做事说话极其不负责任但又装出一副很诲人不倦的样子的人长期占据文学评论的权威位置。”

The total amount of suffering per year in the natural world is beyond all decent contemplation. During the minute that it takes me to compose this sentence, thousands of animals are being eaten alive, many others are running for their lives, whimpering with fear, others are slowly being devoured from within by rasping parasites, thousands of all kinds are dying of starvation, thirst, and disease.

在那样的年纪，我会找任何借口做些估测或者小算术。我会计算油耗还有杂货花销等鸡毛蒜皮的小事。我听过一个有关吸烟的广告。我记不得细节了，但是广告大意是说，每吸一口香烟会减少几分钟的寿命，大概是两分钟。无论如何，我决定为祖母做个算术。我估测了祖母每天要吸几支香烟，每支香烟要吸几口等等，然后心满意足地得出了一个合理的数字。接着，我捅了捅坐在前面的祖母的头，又拍了拍她的肩膀，然后骄傲地宣称，"每天吸两分钟的烟，你就少活九年！"

The essence of mathematics is not to make simple things complicated, but to make complicated things simple.

要理解未来，首先必须理解过去。