问题的数学表述通常比其解决方案更重要，后者可能仅仅是数学或实验技巧的问题。

The universe would look to a two-dimensional creature who spend its life moving on the service of what turned out to be a globe， it could travel for millions of years and would always return to its starting point， it would never be conscious of what was above it or beneath it.

每一本书都是通往另一个世界的门，一个只存在于读者想象的世界。

最具创新性的想法往往来自倾听那些最接近客户的人。

I’m a very positive thinker, and I think that is what helps me the most in difficult moments.

信仰使穷人不至于去谋害富人。