"In 1932, he stuck his camera between the slats of a fence near the St.-Lazare railway station in Paris at precisely the right instant and captured a picture of the watery lot behind the station, strewn with debris. A man has propelled himself from a ladder that lies in the water. Photographs of puddle jumpers were clich?s then, but Mr. Cartier-Bresson brings to his image layer on layer of fresh and uncanny detail ..." (Link)

He was the last of the giants.

Magnum has a very generous retrospective online.