The only way to learn mathematics is to do mathematics.
学习数学的唯一方法就是做数学。
"A play should be a mirror, not a painting."
科技领域最大的风险是不冒任何风险。
The challenges in our lives are there to strengthen our convictions. They are not there to run us over.
最好的老师是那种建议而不是教条化,并激发听众自我教学愿望的人。