“down these mean streets a man must go who is not himself mean, who is neither tarnished nor afraid. He is the hero; he is everything. He must be a complete man and a common man and yet an unusual man. He must be, to use a rather weathered phrase, a man of honor—by instinct, by inevitability, without thought of it, and certainly without saying it. He must be the best man in his world and a good enough man for any world. “He will take no man’s money dishonestly and no man’s insolence without a due and dispassionate revenge. He is a lonely man and his pride is that you will treat him as a proud man or be very sorry you ever saw him. “The story is this man’s adventure in search of a hidden truth, and it would be no adventure if it did not happen to a man fit for adventure. If there were enough like him, the world would be a very safe place to live in, without becoming too dull to be worth living in.”

“In everything that can be called art there is a quality of redemption. It may be pure tragedy, if it is high tragedy, and it may be pity and irony, and it may be the raucous laughter of the strong man. But down these mean streets a man must go who is not himself mean, who is neither tarnished nor afraid.The detective in this kind of story must be such a man. He is the hero; he is everything. He must be a complete man and a common man and yet an unusual man. He must be, to use a rather weathered phrase, a man of honor -- by instinct, by inevitability, without thought of it, and certainly without saying it. He must be the best man in his world and a good enough man for any world. I do not care much about his private life; he is neither a eunuch nor a satyr; I think he might seduce a duchess and I am quite sure he would not spoil a virgin; if he is a man of honor in one thing, he is that in all things.He is a relatively poor man, or he would not be a detective at all. He is a common man or he could not go among common people. He has a sense of character, or he would not know his job. He will take no man's money dishonestly and no man's insolence without due and dispassionate revenge. He is a lonely man and his pride is that you will treat him as a proud man or be very sorry you ever saw him. He talks as the man of his age talks -- that is, with rude wit, a lively sense of the grotesque, a disgust for sham, and a contempt for pettiness.The story is the man's adventure in search of a hidden truth, and it would be no adventure if it did not happen to a man fit for adventure. He has a range of awareness that startles you, but it belongs to him by right, because it belongs to the world he lives in. If there were enough like him, the world would be a very safe place to live in, without becoming too dull to be worth living in.”

“A man follows the path laid out for him. He does his duty to God and his King. He does what he must do, not what pleases him. God's truth, boy, what kind of world would this be if every man did what pleased him alone? Who would plough the fields and reap the harvest, if every man had the right to say, 'I don't want to do that.' In this world there is a place for every man, but every man must know his place.”

“There are only two kinds of men in this world: Honest men and dishonest men. ...Any man who says the world owes him a living is dishonest. The same God that made you and me made this earth. And He planned it so that it would yield every single thing that the people on it need. But He was careful to plan it so that it would only yield up its wealth in exchange for the labor of man. Any man who tries to share in that wealth without contributing the work of his brain or his hands is dishonest.”

“This is what I thought: for the most banal even to become an adventure, you must (and this is enough) begin to recount it. This is what fools people: a man is always a teller of tales, he sees everything that happens to him through them; and he tries to live his own life as if he were telling a story.But you have to choose: live or tell.”

“If there is no adventure in your life, it is as if you live no life! Adventure is the real soul of man; without it, He is a stub!”