Your statement that the world is "teeming with villains and villainesses" is true. Human nature is imperfect, so it would be odd to perceive none but the righteous. Requiring literature to dig up a "pearl" from the pack of villains is tantamount to negating literature altogether. Literature is accepted as an art because it depicts life as it actually is. Its aim is the truth, unconditional and honest. Limiting its functions to as narrow a field as extracting "pearls" would be as deadly for art as requiring Levitan to draw a tree without any dirty bark or yellowed leaves. A "pearl" is a fine thing, I agree. But the writer is not a pastry chef, he is not a cosmetician and not an entertainer. He is a man bound by contract to his sense of duty and to his conscience. Once he undertakes this task, it is too late for excuses, and no matter how horrified, he must do battle with his squeamishness and sully his imagination with the grime of life. He is just like any ordinary reporter. What would you say if a newspaper reporter as a result of squeamishness or a desire to please his readers were to limit his descriptions to honest city fathers, high-minded ladies, and virtuous railroadmen?
To a chemist there is nothing impure on earth. The writer should be just as objective as the chemist; he should liberate himself from everyday subjectivity and acknowledge that manure piles play a highly respectable role in the landscape and that evil passions are every bit as much a part of life as good ones.
— Letter to Maria Kiselyova, January 14, 1887