Being brave isn’t the absence of fear. Being brave is having that fear but finding a way through it.

Technology is a tool, creativity is the soul.

Inclusive finance is not charity, but a sustainable business model.

I have already carried out my duty. I have proved the Poincaré conjecture and I have nothing more to do in mathematics.

对抗邪恶最确定的手段是极端的个人主义、独立的思考、异想天开甚至古怪反常。

写作是对抗遗忘的一种行为。