"A newspaper article - I can't recall the exact year - listed the capitalist Kōsuke Matsushita as the person in Japan with the largest income. I don't know anything about Mr. Matsushita personally, and just happened to see this article, but here I would like to use his case to illustrate exploitation. This example, incidentally, will assume that products and labor-power are sold at their value."
January 1, 1970
https://en.wikiquote.org/wiki/Itsur%C5%8D_Sakisaka