Marx's Labor Theory of Value

The notion of surplus value that what the – like that – that – so labor theory of value obviously exists since Adam Smith but the notion that what the worker adds is surplus value. I think that waits till the Grondresso, these notebooks that are written in the late 1850s and then – then capital in 1867. So we're talking, you know, alienation here and it's – in its raw negative form. And this is – this is Marx's point.