The best way to learn mathematics is to do mathematics.

Don’t loan money to a friend unless you are ready to make it a gift.

国家的力量在于其人民的福祉。

领导力不仅仅是做决定，更是激励他人实现卓越。

It is futile to demand an a priori proof of the existence of objects which are not immediately ‘given’.

最好的技术是你感受不到的技术。

你看到的越多，你感受到的就越多。