Ed Pope is not a spy,

As pope, he has to be the pastor of everyone.

Treason is very much a matter of habit, Smiley decided.

The spy who came in from the cold.

This is a war," Lemas replied. "It's graphic and unpleasant because it's fought on a tiny scale, at close range; fought with a wastage of innocent life sometimes, I admit. But it's nothing, nothing at all besides other wars - the last or the next.

I have a theory which I suspect is rather immoral,' Smiley went on, more lightly. 'Each of us has only a quantum of compassion. That if we lavish our concern on every stray cat, we never get to the centre of things.