In most episodes, Foyle delivers a comprehensive verbal smackdown to the criminal who he's tracked down. And out of all of them, the one from Fifty Ships is probably the best:
Foyle: You know, I sometimes wonder why I do this job. And then I come across someone like you. I mean, we're living in such evil times, when the whole world seems to be sinking into some sort of mire. And as if Hitler wasn't enough, we've got the likes of you, who capitalize on other people's misery, who hurt them, make things even worse for them when they're at their weakest. And it's with the likes of you that this mire begins. And it's some small consolation to know that I've helped to clean up just a little bit of it.