The best way to learn mathematics is to do mathematics.
My characters are not cute. They are dangerous.
The beauty of mathematics only shows itself to more patient followers.
创新不仅仅是技术的问题;它是关于改变思维方式,为后代创造可持续的解决方案。
路上丢失的东西没有人去捡拾,老百姓不敢乱取非分之财。并非形容民风淳朴,而是形容法律严明。