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 ChekhovThere are still many more days of failure ahead, whole seasons of failure, things will go terribly wrong, you will have huge disappointments , but you have to prepare for that, you have to expect it and be resolute and follow your own path.
Anton ChekhovWhen a person hasn't in him that which is higher and stronger than all external influences, it is enough for him to catch a good cold in order to lose his equilibrium and begin to see an owl in every bird, to hear a dog's bark in every sound.
Anton Chekhov