生存下来的不是最强壮的，也不是最聪明的，而是最能适应变化的。

Success is doing what you want to do, when you want, where you want, with whom you want, as much as you want.

世界上有开朗的悲观主义者吗？我就是这样的人。

解析：善恶由心生，非由外物定。

成功不是终点，失败也不是致命的，继续前进的勇气才是关键。

The beauty of mathematics is that it allows us to see patterns and structures in the world that are not immediately obvious.