Cross out as many adjectives and adverbs as you can. ... It is comprehensible when I write: "The man sat on the grass," because it is clear and does not detain one's attention. On the other hand, it is difficult to figure out and hard on the brain if I write: "The tall, narrow-chested man of medium height and with a red beard sat down on the green grass that had already been trampled down by the pedestrians, sat down silently, looking around timidly and fearfully." The brain can't grasp all that at once, and art must be grasped at once, instantaneously.
There should be more sincerity and heart in human relations, more silence and simplicity in our interactions. Be rude when you're angry, laugh when something is funny, and answer when you're asked.
The personal life of every individual is based on secrecy, and perhaps it is partly for that reason that civilized man is so nervously anxious that personal privacy should be respected.
Not only after two or three centuries, but in a million years, life will still be as it was; life does not change, it remains for ever, following its own laws which do not concern us, or which, at any rate, you will never find out. Migrant birds, cranes for example, fly and fly, and whatever thoughts, high or low, enter their heads, they will still fly and not know why or where. They fly and will continue to fly, whatever philosophers come to life among them; they may philosophize as much as they like, only they will fly.
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.