In the world of physics, we often find that the simplest questions are the hardest to answer.
在物理学的世界里,我们经常发现最简单的问题最难回答。
即使没人相信你,也要相信自己。
生命太短暂,不要浪费时间在无关紧要的事情上。
The basic laws of behavior are the same for all organisms.