Do not believe anything on the mere authority of teachers or priests. Accept as true and as the guide to your life only that which accords with your own reason and experience, after thorough investigation. Accept only that which contributes to the well-being of yourself and others.
If people become accustomed to lying, they will unconsciously commit every possible wrong deed. Before they can act wickedly, they must lie and once they begin to lie they will act wickedly without concern.