没有任何一位总统能够忠实地、认真地履行他的职责，还能有闲暇时间。

真正的创新来自于对细节的极致追求。

The most important political distinction among countries concerns not their form of government but their degree of government.

生命中最伟大的荣耀不在于从不跌倒，而在于每次跌倒后都能站起来。