"The best and most beautiful things in the world cannot be seen or even touched - they must be felt with the heart."

I want to liberate America from all the things that hold people back.

In the realm of physics, we are not just observers but also creators of the reality we seek to understand.

The great work begins.

不学习历史的人注定要重复错误。

时间不是药，药在时间里。