"I’m a very positive thinker, and I think that is what helps me the most in difficult moments."

The art of filmmaking is in the details; it's the small things that make a big difference.

实现明天的唯一限制是我们今天的疑虑。

We must design for the future while respecting the past.

粒子的概念只是近似的，并且只有在动量较小的极限下才有意义。

解释：树冠大了必然会折断，尾巴大了自然不能摆动，这是你知道的道理。