我们都在阴沟里，但仍有人仰望星空。
"We are all in the gutter, but some of us are looking at the stars."
The aim of proof is to understand, not just to verify.
In times of change, the ability to adapt and remain agile is what separates the winners from the losers.
"A novel is a mirror that reflects not just the author's soul, but the soul of the reader as well."
我们教授一门学科不是为了培养关于该学科的小型活图书馆，而是让学生自己学会数学思考。