解释：过去和现在风俗不同，为什么一定要效仿古代？

知识只有在它有助于人类解放时才有价值。

"When you are writing, you are trying to find out something which you don't know."

A workshop should smell of sawdust and dreams in equal measure.

The future of physics lies in our ability to manipulate processes that occur faster than we can currently measure.

我不与他人竞争，我与自己竞争。