Sometimes it seems as if there are more solutions than problems. On closer scrutiny, it turns out that many of today's problems are a result of yesterday's solutions.

玫瑰是有很多朵，她并不是独一无二的，但是就是因为你的灌溉，让她变得与众不同，让她变得独一无二。

在数学中，最深刻的思想往往源于最简单的观察。

我不找借口。我寻找解决方案。