Sustainability is not an option; it's a necessity for the future of our planet.
可持续性不是一种选择；它是我们星球未来的必需品。
The greatest battles are not fought with weapons, but with ideas.
Man's freedom is his limitation.
I am not apt to follow blindly the lead of other men.
领导力是赋能他人，让他们实现曾认为不可能的事。
教育是在所学知识被遗忘后仍能留存的东西。
Twenty years of romance make a woman look like a ruin; but twenty years of marriage make her look like a public building.