"Ravenclaw Sagittarians are the philosophers of the magical world. They love pure theory, pure mathematics, and anything that appeals to their yearning for far horizons, whether those horizons be physical (in which case they will do a lot of traveling) or mental. They excel at astrology and research, and have the rare gift of both being able to investigate a subject deeply and then being able to explain it to other people in plain language. This makes for excellent teaching potential. They are cheerful, athletic, brisk, and humourous, and also decidedly eccentric. Sometimes they get on people's nerves, because they don't have as many interpersonal skills as they seem to think they have, but it's hard to stay mad at a Ravenclaw Sagittarian for very long. They're just too goofy."