The Pale Blue Dot—a book that should be mandatory for every single student in the world—is a vision of the cosmos that will inspire you to be a better human being. It's full of memorable passages but this is the best—the one that gives its title to the book.
Put on your headphones and listen:
It's beautiful, although this one is still my favorite of him reading the entire text.
If you haven't yet, buy the book here (or better yet, search for the audio version that is floating online.)