It would be great to refuse people services and requests without feeling guilty! But often we say, "Yes, no problem," simply because we worry about others' opinions and don't want to seem selfish. In this book, psychotherapist Lee Ha Nyeol shares how her unwillingness to refuse and desire to be convenient for everyone led her to anxiety and depression. To get out of this state, she focused on self-analysis and discovered that the first key to a happy life is the art of saying "no." The advice Ha Nyeol gives will help anyone struggling in relationships and wanting to regain lost self-respect. Remember, refusal doesn't make you bad. It's just a way to live in harmony with yourself and express your true feelings sincerely and politely. QUOTES: "Refusal is not rejection of the other person; it is an expression of your feelings." "You are not obliged to be convenient. You can be alive, authentic, vulnerable—but sincere." "Your real life begins now." "To be happy, you need to live so that the center of your attention is not others, but yourself." "Refusal is a tool for protecting personal boundaries." "By saying 'no,' you are not just setting a boundary—you are taking a step toward inner freedom." "Life is not about being good. Life is about being yourself." "You are the only one who remembers the pain inflicted on you. If you feel hurt—do not stay silent." "The more you make your own choices, the more freedom you will feel." "Disagreeing doesn't mean pushing away. It's a sign of respect for your feelings." "Remind yourself: you are a person with the right to your own voice and feelings." "Refusal is not aggression or rudeness. It is an important act of self-respect and maturity." "You cannot change a person, but you can change the situation." "Self-expression is not selfishness. It's everyone's right." "Your inner 'self' should always be happy and belong to you, not someone else." "Don't let relationships control you; control them yourself." "You are not obliged to fulfill every request. Especially if you are not morally, physically, or emotionally ready." "Keep kindness, but don't let yourself be used." "You are a person worthy of love simply because you exist." "The key to changing the world and yourself is in your hands."