“Down these mean streets...."

The Annotated Big Sleep is one of my Christmas books (a gift to myself). I've just started to read it. From the Amazon description (also the back cover of the book):

The first fully annotated edition of Raymond Chandler’s 1939 classic The Big Sleep features hundreds of illuminating notes and images alongside the full text of the novel and is an essential addition to any crime fiction fan’s library.

A masterpiece of noir, Raymond Chandler's The Big Sleep helped to define a genre. Today it remains one of the most celebrated and stylish novels of the twentieth century. This comprehensive, annotated edition offers a fascinating look behind the scenes of the novel, bringing the gritty and seductive world of Chandler's iconic private eye Philip Marlowe to life. The Annotated Big Sleep solidifies the novel’s position as one of the great works of American fiction and will surprise and enthrall Chandler’s biggest fans.

Chandler:

...[D]own 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.

Another post about the book.