Here are 12 inspirational sentences in English for quitting smoking:

1、Quitting smoking is a step towards a healthier life.

2、The courage to quit smoking is the first step to a better future.

3、Smoking is not your destiny, choose a healthier path.

4、Every puff you don't take is a step towards a healthier life.

5、Quitting smoking is a challenge, but the reward is a healthier, happier you.

6、Don't let the habit of smoking control your life, take control of it.

7、The hardest part of quitting smoking is the first step, but it's worth it in the end.

8、Smoking doesn't define you, you are more than just a smoker.

9、The road to recovery from smoking is long, but with patience and commitment it can be achieved.

10、Stronger days are ahead, free from the grasp of tobacco.

11、Every day you choose not to smoke is a day closer to a healthier life.

12、Smoking may be a habit, but quitting is a decision that can change your life for the better.

These sentences are designed to inspire and motivate you to quit smoking and live a healthier life. Remember, every step you take towards quitting is a step in the right direction.