学习数学的唯一方法就是做数学。
Are you upset, little friend? Have you been lying awake worrying? Well, don't worry. I'm here. I'm here to give you reassurance. Everything is all right. The famine will end...the sun will shine tomorrow...
Success requires persistence, the ability to not give up in the face of failure, and to learn from that failure.
忽略别人可能对你持有的看法，因为他们压根没有在想你。
The great tragedy of Science—the slaying of a beautiful hypothesis by an ugly fact.