最好的企业是解决实际问题的。找到需求并满足它。
The best businesses solve real problems. Find a need and fill it.
像明天就要死去一样活着,像永远活着一样学习。
You think your pain and your heartbreak are unprecedented in the history of the world, but then you read.
The language of mathematics is universal; it transcends all cultural barriers.
我不是悲观主义者。我是一个受过现实主义训练的乐观主义者。