“Sorry, my dear, one mustn't be bohemian!”

“My dear friend, we mustn't give them even the slightest excuse to judge us! Otherwise, we end up in pieces.”

“Mmm, being irresistibly likeable is such a trial,' she drawled in an impeccable aristocratic whine. 'One is constantly in demand, but one must do one's duty, mustn't one, dear chap? Noblesse oblige and all that...”

“Oh, my dear boy, one mustn't expect gratitude. It's a thing that no one has a right to. After all, you do good because it gives you pleasure. It's the purest form of happiness there is. To expect thanks for it is really asking too much. If you get it, well, it's like a bonus on shares on which you've already received a dividend; it's grand, but you mustn't look upon it as your due.[The back of beyond]”

“Dear God, i am so sorry for whatever i did, but honestly, was my sin that bad?”

“One mustn't dream of one's future; one must earn it.”