Over the centuries the Indians developed sign language for communicating phenomena of interest. Programmers from different tribes (FORTRAN, LISP, ALGOL, SNOBOL, etc.) could use one that doesn't require them to carry a blackboard on their ponies.
You don't have to be a mathematician to have a feel for numbers.
Mathematics is the art of giving the same name to different things.
成为电影人就是成为讲故事的人,成为讲故事的人就是成为人。
好的教育中,一半的技能,是学会鉴别“哪些事物应被直接忽略掉”这样的能力。