Was the principle of too big to fail part of the reason for the financial crisis?

WSJ: Ex-CEO Greenberg: Don't blame me for AIG failure

The whole reason that we embrace the ethical principle of the right to choose is that it goes some way to ensuring that a woman's biology does not come to define her life in a way that would never happen to men.

CNN: Surrogate mother had the right to choose

One reason is the club's hallowed principle of non-interference in its members' affairs.

ECONOMIST: Gloom over Indonesia

But the Greek leader - for whatever reason - has insisted on a principle, that a plan which almost certainly result in 10 years of austerity "should be adopted by the Greek people".

BBC: Greece referendum: Democracy versus the eurozone