Marcel Mauss
Mauss referred to Hubert as his "Siamese twin" and is also a co-author of many of Marcel's works. In works that they are not co-authored, they cite each other. As Mauss said "[e]verything I don't know, Mauss knows, and everything Mauss doesn't know, I know." Their major works and theories were products of their teamwork, and therefore both greatly influenced each other.