Mathematics knows no races or geographic boundaries; for mathematics, the cultural world is one country.
数学不知道种族或地理边界;对于数学来说,文化世界是一个国家。
书籍是心灵的窗户,透过它们我们可以看到更广阔的世界。
企业的成功不是靠模仿,而是靠创新。
Writing is a way of making sense of the world.
We must balance economic growth with environmental stewardship.