"The Long Goodbye" by Raymond Chandler (1953)

A deep thinker is unlikely to become a Marlowe. Thinking will expose that occupation's risks and suggest alternative opportunities. Nevertheless, in order to survive as a Marlowe (which Marlowe does), one must judge characters well and make winning choices. For that, Marlowe has moral taste, an instinct, or principles. Marlowe is attracted to others who appear to share his good taste---regardless of whether their taste has translated into accomplishments. Aware of the world's imperfections, Marlowe recognises that translation's haphazard nature.

Reading a mystery is addictive. Confronted with a good question, the mind refuses to admit that a good answer may be unavailable. The entire civilization has been built on the addiction to riddles the solutions to which may be beyond one's reach. This irrational addiction is valuable provided one chooses the object of his addiction rationally.