Mathematics is not a spectator sport; you have to play to understand.
数学不是观赏性运动,你必须参与其中才能理解。
You can't stop the waves, but you can learn to surf.
The text is a tissue of quotations drawn from the innumerable centers of culture.
创新不仅仅是技术的问题,它关乎改变人们的思维和行动方式。
解释:德行不够优良的人,难以有崇高的信念与理想。才能不够突出的人,难以有渊博的知识和见解。
艺术的本质功能是道德性的。