我们的挑战是创造引人入胜且相关的内容。

再说，义就是匡正的意思，不能以下正上，必须是以上正下。 

Part of what you must learn is how to handle mistakes and new facts that change the odds.Life, in part, is like a poker game wherein you have to learn to quit sometimes when holding a much-loved hand.

Innovation distinguishes between a leader and a follower.

信件是传记作者的金矿；它们揭示了官方记录所隐藏的东西。