No president who performs his duties faithfully and conscientiously can have any leisure.
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。
"I hope that in this year to come, you make mistakes. Because if you are making mistakes, then you are making new things, trying new things, learning, living, pushing yourself, changing yourself, changing your world. You're doing things you've never done before, and more importantly, you're doing something."
我知道要达到顶峰需要付出多少努力，但保持在那里需要更多。
安全是石油行业的生命线，任何时候都不能放松。