"The true sign of intelligence is not knowledge but imagination."
Being brave isn’t the absence of fear. Being brave is having that fear but finding a way through it.
The best way to predict the future is to create it.
数学的进步不仅仅依靠个人的努力,而是通过几代人的集体工作。
艺术中没有错误,只有意外的发现。