感谢一位改变了你生活的老师。
The true challenge in mathematics is not solving problems, but asking the right questions.
我喜欢把大自然想象成一个无限的广播站,通过它上帝每小时都在对我们说话,只要我们愿意调谐。
A man's errors are his portals of discovery.
"Children's literature should be taken seriously because it shapes young minds."