I don't want to make things that are difficult for people. I want to make things that are easy.
"Imagination is more important than knowledge."
True understanding comes from seeing connections between seemingly unrelated ideas.
教师必须相信每个孩子的可教育性。
The beauty of mathematics lies in its simplicity and universality.
勇敢就是无条件地爱一个人，而不期待任何回报。
未来属于那些敢于梦想并有勇气追求梦想的人。