没有反省的人生不值得活。
Mathematics is not about numbers, equations, computations, or algorithms: it is about understanding.
要理解宇宙,你必须理解它所用的语言,那就是数学。
你必须由传教士而不是雇佣兵来管理。
农业的可持续性不是一种选择,而是对后代子孙的必要责任。
If a lion could talk, we could not understand him.
I think that the role of the mathematician is to discover these patterns and to explain them.