实现明天理想的唯一障碍是今天的疑虑。

优化是在给定约束条件下做出最佳决策的艺术。

I have often been asked how my plays come about. I cannot say. Nor can I ever sum up my plays, except to say that this is what happened. That is what they said. That is what they did.

实际上，你要抑制自己的野心，这样你才能成为你应该成为的人。