Note 2 — IV.

It is incumbent upon me to make a personal explanation at this place. People have lately referred to my share in this theory, and so I can hardly refrain from saying a few words here in settlement of that particular matter. I cannot deny that I had before and during my forty years' collaboration with Marx a certain independent share not only in laying out the foundations, but more particularly in working out the theory. But the greatest part of the leading essential thinking, particularly in the realm of economics, and especially its final sharp statement, belongs to Marx alone. What I contributed Marx could quite readily have carried out without me with the exception of a pair of special applications. What Marx supplied, I could not have readily brought. Marx stood higher, saw further, took a wider, clearer, quicker survey than all of us. Marx was a genius, we others, at the best, talented. Without him the theory would not be what it is today, by a long way. It therefore rightly bears his name.