Some less popular ones that aren't on the list: - Humility - Honesty - Life is not fair More popular: - How to choose friends - How to be a friend Obscure

Some less popular ones that aren't on the list: - Humility - Honesty - Life is not fair More popular: - How to choose friends - How to be a friend Obscure but save a lot of pain - Don't spend too much on a house or car. - How to recognize and run away from psychopaths.