The Spy Who Came in from the Cold by John La Carré

1) “Now that it was over, they could get on with the real war that had started with the Bolshevik Revolution in 1917 and had been running under different flags and disguises ever since.”

2) “Intelligence work has one moral law – it is justified by results.”

3) “‘We act it to one another, all this hardness, but we aren’t like that really, I mean… one can’t be out in the cold all the time; one has to come in from the cold… d’you see what I mean?'” – Control

4) “‘I mean you can’t be less ruthless than the opposition simply because your government’s policy is benevolent, can you now?'” – Control

5) “‘I know you are, but I don’t know what about. You’re a fanatic who doesn’t want to convert people, and that’s a dangerous thing.'” – Liz

6) “He said his name was Ashe with an ‘E’ he added quickly, and Leamus knew he was lying.”

7) “‘That is why a Communist sees his secret service as the natural extension of his arm, and that is why in your own country intelligence is shrouded in a kind of pudeur anglaise.'” – Fiedler

8) “‘What do you mean, a philosophy? We’re not Marxists, we’re nothing. Just people.'” – Leamus

9) “But she doubted whether all the good Germans were on one side and all the bad ones on the other.”

10) “But seven people were nothing: they were worse than nothing, because there were evidence of the inertia of the uncapturable mass. They broke your heart.”