科学中最重要的事情是不怕看起来愚蠢。

勇气是能站起来侃侃而谈。勇气也是能坐下来静静倾听。

The world is full of people who will tell you what you can't do. You don't need them. You already know what you can't do. What you need is someone to tell you what you can.

Courage is the most important of all the virtues, because without courage you can't practice any other virtue consistently.