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.

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.

A person loves to talk about his illnesses although that is the least interesting part of his life.

Only one who loves can remember so well.

It is depressing to hear the unfortunate or dying man jest.

No psychologist should pretend to understand what he does not understand... Only fools and charlatans know everything and understand nothing.

If I had listened to the critics I'd have died drunk in the gutter