Gravitation surely is not the most appreciated of all forces. Clearly, in its absence, my first step would have been far easier to achieve, and my clumsiness would have less practical consequences! This is unfair judgement though, for without gravitation there would be no one to enjoy floating around. Without gravitation, the splendid structures of our Universe could not have formed. Without gravitation, galaxies would not swirl and stars would not shine; planets would never have come to existence, and life would not be.