I was neat, clean, shaved and sober, and I didn't care who knew it.

The secret of change is to focus all of your energy，not on fighting the old，but on building the new.

"The world is a book, and those who do not travel read only one page."

过去不是静止的画卷，它随我们而动，随我们的变化而变化。

Every mathematical theorem is a story, a narrative that unfolds through logic and reason, leading to a deeper understanding of the world.

The longer the night lasts, the more our dreams will be.

科学进步必须以道德指南针为指导。