旅行的用途是用现实来调节想象力，而不是想象事情可能是怎样的，而是看到它们实际是怎样的。
"The use of traveling is to regulate imagination by reality, and instead of thinking how things may be, to see them as they are."
A thing of beauty is a joy forever: its loveliness increases; it will never pass into nothingness.
I want to liberate America from fear. I want people to be afraid of the things that are really scary, like war and famine, not their neighbor because he has a different religion.
跨行业合作是解决复杂全球挑战的关键。