The only way to learn mathematics is to do mathematics.
计算模型的力量不仅在于其计算能力，还在于其从特定实例中概括的能力。
A journey is a person in itself; no two are alike. And all plans, safeguards, policing, and coercion are fruitless. We find after years of struggle that we do not take a trip; a trip takes us.
不要因为放弃而哭泣，要为了继续前进而哭泣。
I'm not scared to walk this world alone.
The fact remains that getting people right is not what living is all about anyway. It’s getting them wrong that is living, getting them wrong and wrong and wrong and then, on careful reconsideration, getting them wrong again.
The laws of behavior can be derived from basic physiological principles.
A writer is selected by his subject—his subject being the consciousness of his own era.
If you're not stubborn， you'll give up on experiments too soon. And if you're not flexible， you'll pound your head against the wall and you won't see a different solution to a problem you're trying to solve.
我认为制作一部好电影的关键是确保每一个场景都尽可能好。