Just as important, it suggests that political leaders, of left and right alike, remain incorrigibly protectionist at heart.

ECONOMIST: Italian politics

Mr Blair does not subscribe to the view that the Tories revived simply because Britain is an incorrigibly conservative nation.

ECONOMIST: The Labour Party

On the one hand, the collapse of the financial system has been taken as proof that bankers are incorrigibly, irredeemably naughty children.

BBC: If banks are treated as naughty kids...

This Islamist ideology is incorrigibly anti-Western and anti-Semitic.

CENTERFORSECURITYPOLICY: Oppose Brennan for CIA Director

He has an incorrigibly independent mind.

ECONOMIST: Carl Bildt, a good Balkan Swede