If I would have left off the author in that quote, everyone would have still known it was Dr. Seuss. His ability to create words and use his imagination in ways that no one can match has made me a life long fan. Dr. Seuss books are a great baby gift or even a young birthday gift. Tie a group of them together and put the quote on the tag. Be sure to sign the inside of the books and date them. You will have just given endless hours of entertainment.
Update: Welcome all Dr. Seuss lovers. Go here for a fun green eggs and ham post.