“You're thinking that people don't keep up old jealousies for twenty years or so. Perhaps not. Not just primitive, brute jealousy. That means a word and a blow. But the thing that rankles is hurt vanity. That sticks. Humiliation. And we've all got a sore spot we don't like to have touched.”

“The two men sat silent for a little, and then Lord Peter said: "D'you like your job?" The detective considered the question, and replied: "Yes—yes, I do. I know it to be useful, and I am fitted to it. I do it quite well—not with inspiration, perhaps, but sufficiently well to take a pride in it. It is full of variety and it forces one to keep up to the mark and not get slack. And there's a future to it. Yes, I like it. Why?" "Oh, nothing," said Peter. "It's a hobby to me, you see. I took it up when the bottom of things was rather knocked out for me, because it was so damned exciting, and the worst of it is, I enjoy it—up to a point. If it was all on paper I'd enjoy every bit of it. I love the beginning of a job—when one doesn't know any of the people and it's just exciting and amusing. But if it comes to really running down a live person and getting him hanged, or even quodded, poor devil, there don't seem as if there was any excuse for me buttin' in, since I don't have to make my livin' by it. And I feel as if I oughtn't ever to find it amusin'. But I do.”

“In reaction against the age-old slogan, "woman is the weaker vessel," or the still more offensive, "woman is a divine creature," we have, I think, allowed ourselves to drift into asserting that "a woman is as good as a man," without always pausing to think what exactly we mean by that. What, I feel, we ought to mean is something so obvious that it is apt to escape attention altogether, viz: (...) that a woman is just as much an ordinary human being as a man, with the same individual preferences, and with just as much right to the tastes and preferences of an individual. What is repugnant to every human being is to be reckoned always as a member of a class and not as an individual person.”

“Listen, Harriet. I do unterstand. I know you don't want either to give or to take ... You don't want ever again to have to depend for happiness on another person.""That's true. That's the truest thing you ever said.""All right. I can respect that. Only you've got to play the game. Don't force an emotional situation and then blame me for it.""But I don't want any situation. I want to be left in peace.”

“[I]t's difficult to make people see that what you have been taught counts for nothing, and that the only things worth having are the things you find out for yourself. Also, that when so many brands of what Chesterton calls 'fancy souls' and theories of life are offered you, there is no sense in not looking pretty carefully to see what you are going in for. [...] It isn't a case of 'Here is the Christian religion, the one authoritative and respectable rule of life. Take it or leave it'. It's 'Here's a muddling kind of affair called Life, and here are nineteen or twenty different explanations of it, all supported by people whose opinions are not to be sneezed at. Among them is the Christian religion in which you happpen to have been brought up. Your friend so-and-so has been brought up in quite a different way of thinking; is a perfectly splendid person and thoroughly happy. What are you going to do about it?' -- I'm worrying it out quietly, and whatever I get hold of will be valuable, because I've got it for myself; but really, you know, the whole question is not as simple as it looks.”

“It's very good of you--""No, no, not at all. It's my hobby. Not proposing to people, I don't mean, but investigating things. Well, cheer-frightfully-ho and all that. And I'll call again, if I may.""I will give the footman orders to admit you," said the prisoner, gravely, "you will always find me at home.”

“At twenty years of age, the old-fashioned schooling turned me out helpless, ignorant and dissatisfied. Forty years later I encounter the product of the new schooling — still more helpless, still more ignorant, and possibly not even dissatisfied.”