p V-LENIN

... Two volumes of Capital are the work of two men: Marx and Engels. Old legends contain various moving instances of friendship. The European proletariat may say that its science was created by two scholars and fighters, whose relationship to each other surpasses the most moving stories of the ancients about human friendship. Engels always-and, on the whole, quite justly-placed himself after Marx. "In Marx’s lifetime," he wrote to an old friend, "I played second fiddle." His love for the living Marx, and his reverence for the memory of the dead Marx were boundless. This stern fighter and austere thinker possessed a deeply loving soul....