Mark Twain is one of my favorite authors. If you haven't read, "Letters from Hawaii," read it! It's one of my favorite books and especially if you are traveling to Hawaii or always wanted to go there, it's filled with Twain's first hand experiences which does not age with time.
A Mark Twain quote I came across the other does (is not in the book) but I love it just the same, is: "Keep away from people who belittle your ambitions. Small people always do that, but the really great make you feel that you, too, can become great." Mark Twain.