You have to be willing to sacrifice who you are for who you will become.
I don't think about the past. The only thing that matters is the future.
协助儿童,能使你们之间建立起更亲密的关系。这胜过一般的感情,因为你不仅给他安慰,更给予了他们实际的帮助。
矿工的安全永远不应该用成本效益分析来衡量。