In times of adversity and change, we really discover who we are and what we're made of.

译文：人生不能过于安逸闲散，有了可以不断追求的事业，才能收回安逸之心。日用花费必须要节俭，只有杜绝奢靡，才能彰显勤俭的美德。赏析：生于忧患死于安乐。逸豫可以亡身，忧劳可以兴国。一个人过于安逸，就会无所事事，丧失斗志。一粥一饭当思来之不易，半丝半缕恒念物力维艰。

The biggest matches are won in the mind before they're won on the court.

领导者真正重要的工作是创造和管理文化。

All language is but a poor translation.

数学不是一项观赏性运动；要理解它，必须积极参与其中。