有时我们为某些事感到悲伤，却不愿告诉别人。我们想保守这个秘密。或者有时我们感到悲伤，却真的不知道为什么悲伤，于是我们说我们不悲伤，但实际上我们是悲伤的。
Sometimes we get sad about things and we don’t like to tell other people that we are sad about them. We like to keep it a secret. Or sometimes, we are sad but we really don’t know why we are sad, so we say we aren’t sad but we really are.
Every mathematical theorem is a story, a narrative that unfolds through logic and reason, leading to a deeper understanding of the world.
细节不是细节，它们构成了设计。
The good things are not dead.
"I'm not a businessman, I'm a business, man."
I'm not a role model, I'm just a human being.
The simplest words often carry the heaviest weight.
