Antonio "Toni" Negri is an Italian Spinozistic-Marxist sociologist and political philosopher, best known for his co-authorship of Empire and secondarily for his work on Spinoza. Born in Padua, he became a political philosophy professor in his hometown university. Negri founded the Potere Operaio group in 1969 and was a leading member of Autonomia Operaia. As one of the most popular theorists of autonomism, he has published hugely influential books urging "revolutionary consciousness".