People, even more than things, have to be restored, renewed, revived, reclaimed, and redeemed; never throw out anyone.  
The most rewarding part of my job is seeing our medicines make a difference in people's lives.
数算练习告诉我们算术运算的原理,而不是单单的记忆和不断演算。
The biggest enemy of technology is inertia.
Innovation in extraction technology is meaningless if it doesn't prioritize environmental sustainability.