That is what learning is. You suddenly understand something you've understood all your life, but in a new way.

The language of mathematics is universal, transcending cultural and linguistic barriers.

谎言环游全球的时候,真相还没穿好裤子。

出自汉·桓宽《盐铁论·申韩》。善于治理国家的人，一发现弊病就立即补救，一看到漏洞就立即堵塞。

The only way to do great work is to love what you do.

Mathematics is the art of giving the same name to different things.