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。
Letters are the biographer's gold mine; they reveal what official records conceal.
我们需要超越设备本身，专注于它实现的生态系统。
I'm proof that you can come from nothing and make something of yourself.
Great leaders don't create followers; they create more leaders.
幸福不在于我们拥有多少，而在于我们享受多少。