What did Marx and Engels say about Capitalism?' -What is 'Surplus Value'

-Marx argued Capitalism, like its Previous Stages (Feudalism), has Seeds of its Destruction. Marx said within Capitalism, 2 Classes are Split with the Proletariat and the Bourgeoisie on either side -The Interests are at odds with each other, with the Bourgeois wanting Profit based on Exploiting the Proletariat -Surplus Value describes how Workers are (and must be) paid Less than the True Value of their Labour to Extrapolate Profit. The Worker gets no Satisfaction from what they Produce, as they part of the Process -They don't see the End Product, and can't afford it. Marx Described this as Alienation -This is very true when we look at Nations in China and Bangladesh