没有任何一位忠实尽责地履行职责的总统会有任何闲暇。
No president who performs his duties faithfully and conscientiously can have any leisure.
It's better to burn out than to fade away.
The moment you doubt whether you can fly, you cease for ever to be able to do it.
We are all prisoners of our own experiences, and it is only through understanding others that we can free ourselves.