As our values are the core to who we are as human beings, they are also the easiest way to identify and connect with others in meaningful ways. Think about it - most political campaigns are based around values. Barack Obama's 2008 election campaign galvanized millions of youth behind two very clear values - hope and change.
The photographs of space taken by our astronauts have been published all over the place. But the eye is a much more dynamic mechanism than any camera or pictures. It's a more exciting view in person than looking at the photographs. Of course, I personally am sick and tired of hearing people talk like that: I want to see it myself!