The essence of mathematics is not just in solving problems but in asking the right questions.
数学的本质不仅在于解决问题,还在于提出正确的问题。
The world is full of people whose notion of a satisfactory future is, in fact, a return to the idealised past.
能克服自己的私欲,什么祸害对你都是无可奈何的了。