经济史告诉我们，改变是可能的，但很少是容易的。
Ah, but a man's reach should exceed his grasp, or what's a heaven for?
The joy of solving a mathematical problem is unparalleled; it is a moment of pure intellectual triumph.
Consumer preferences evolve rapidly, and staying ahead means listening more than we speak.
成功不是终点，失败也不是致命的：重要的是继续前进的勇气。
性格不是你与生俱来且无法改变的东西，比如你的指纹。它是你并非与生俱来且必须负责塑造的东西。