Paul Foot on Tony Benn (LRB, 22 February 1990):

For nearly a century, Labour MPs have been going to Parliament to change the world, but have ended up changing only themselves. Tony Benn is unique. He went to Parliament to change himself, but has ended up determined only to change the world. This extraordinary conversion has taken place not on the backbenches, where a young socialist’s revolutionary determination is often toughened by being passed over for high office, but in high office itself. Indeed, the higher the office Tony Benn occupied, the more his eyes were opened to the horror of capitalist society, and to the impotence of socialists in high office to change it.