"How much survives of the other peacetime prime ministers since the war? What were John Major and Harold Wilson and Anthony Eden for? Won't Tony Blair's manic grin end up as ruined as Ozymandias's "wrinkled lip and sneer of cold command"? Among the great might-have-been-prime ministers, most fall into one of two traps. On the one hand are the too greedily ambitious, the Denis Healeys who don't stand up to the enemy at the moment they should, and the Michael Heseltines, who are too impatient of the system that they seek to dominate. On the other are the prophets – the Bevans, Benns and Powells – who may be more original than their more conventional rivals, but cannot be called successful."