Leadership plays a crucial role in diplomacy, and good leadership can guide a team to address complex international challenges.
领导力在外交中起着重要作用，良好的领导能够带领团队应对复杂的国际挑战。
I ask senior leaders to not do anything unless they're willing to do it for 10 years.
I am only resolved to act in that manner, which will, in my own opinion, constitute my happiness, without reference to you, or to any person so wholly unconnected with me.
Randomized evaluations can help us understand what works and what doesn't in development.
You have to believe in your dreams before they can come true.
The world is a book, and those who do not travel read only one page.
The human mind is so complex and things are so tangled up with each other that, to explain a blade of grass, one would have to make a diagram of the universe.