Leadership is about making tough decisions and standing by them.
领导力就是做出艰难的决定并坚持到底。
I remember my friend Johnny von Neumann used to say, 'with four parameters I can fit an elephant, and with five I can make him wiggle his trunk.'
数学家最好的作品是艺术，一种高度完美的艺术，像想象的最秘密的梦想一样大胆，清晰而透明。
The circular economy isn't a trend—it's the foundation of how we must operate.