勇气是面对恐惧时的坚持。
Courage is the persistence in the face of fear.
The only limit to our realization of tomorrow will be our doubts of today.
The Internet is a global resource that should be managed in the public interest.
计算机图形学中最重要的就是理解光以及它如何与表面相互作用。
In the realm of physics, we are not just observers but also creators of the reality we seek to understand.
The moment you doubt whether you can fly, you cease forever to be able to do it.