数学不是一项观赏性运动；要理解它，必须积极参与其中。
Mathematics is not a spectator sport; to understand it, one must engage with it actively.
You can't build an empire without making a few enemies along the way.
我的清白终于开始让我感到沉重。
"The truth is rarely pure and never simple."
The world doesn’t need more cute things. It needs more truth.