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。
No president who performs his duties faithfully and conscientiously can have any leisure.
The best ideas often come from those closest to the problem.
The only real freedom is the freedom to say no.
Talent is how quickly your skills improve when you invest effort. Effort is what makes skill productive.