The life of Michelangelo offers one of the most striking examples of the influence that a great man can have on his time. At the moment of his birth in the second half of the fifteenth century the serenity of Ghirlandajo and of Bramante illuminated Italian art. Florentine sculpture seemed about to languish away from an excess of grace in the delicate and meticulous art of Rossellino, Disiderio, Mino da Fiesole, Agostino di Duccio, Benedetto da Maiano...