Science is not just about theory; it's about making things that work in the real world.
When speaking to an audience it’s better to fix your gaze on a few people than to “spray” your gaze across the room. Your eyes telegraph to others whether you really believe what you are saying.
真相很少是纯粹的，也从不简单。
The biggest risk is not taking one.
预测未来的最好方式就是创造它。