While I do not know if St. Augustine actually said this, I will continue to give him credit because my philosophy and theology are quite Augustinian in nature and more importantly it is very rude to disagree with a saint. Also, he uses 'book' and 'travel' in the same sentence: two-thirds of my holy trinity of books, travel, and coffee.
Ten years ago, I made my first trip out of the US. Since then, I have seen more countries than states. And now that Delta stamps my boarding pass with the coveted elite tag, I can make grandiose authoritative statements and feel even better about myself for doing so.
Eight Reasons Why You Must Travel (outside the United States):
8. Because the food tastes completely different than the same food does at Epcot and on International Drive
7. Because Americans have stereotypes and traveling helps you see how these are true
6. Because when you visit a person's home (country), you understand and know that person in a way you could never have otherwise
5. Because international flights give you unlimited complimentary drinks, personal televisions, and a folded blue eye mask (if you're lucky)
4. Because there is more than one way to drive on the road
3. Because you learn that you can do well with less
2. Because every person, from every nation, from every faith, has the image of God in them. And that's easy to forget when we only know people by they way they are portrayed in the news and movies. We need to look into their eyes, touch their hands, and see their beauty.
1. Because it's there