In displaying the psychology of your characters, minute particulars are essential. God save us from vague generalizations! Be sure not to discuss your hero's state of mind. Make it clear from his actions. Nor is it necessary to portray many main characters. Let two people be the center of gravity in your story: he and she.
Anton ChekhovPharisaism, obtuseness and tyranny reign not only in the homes of merchants and in jails; I see it in science, in literature, and among youth. I consider any emblem or label a prejudice.... My holy of holies is the human body, health, intellect, talent, inspiration, love and the most absolute of freedoms, the freedom from force and falsity in whatever forms they might appear.
Anton Chekhov