Here are 15 inspiring sentences in English for daily motivation regarding exercise:

1、"Every step you take towards fitness is a step towards a better you."

2、"Never give up on your dreams of staying healthy, no matter the challenges."

3、"Your body has strength and power to perform, only need to release it."

4、"Exercise is not a punishment, it's a key to a better life."

5、"Every workout is a step towards a healthier and stronger you."

6、"When your legs start to ache, your progress begins."

7、"Hard work pays off. Trust your process."

8、"Success is not an overnight event, it's a result of consistent effort."

9、"Health is a gift, and exercise is the key to unlocking its full potential."

10、"Every day you choose to be active, you choose a healthier lifestyle."

11、"Small steps can lead to great distance in fitness and in life."

12、"Take your life into your own hands by making exercise a priority."

13、"Never stop pushing yourself, because your body can do more than you think."

14、"Maintain motivation for every fitness milestone reached with celebration and new challenges."

15、"Focus on becoming a stronger version of yourself through each workout."

These short and encouraging sentences are designed to motivate you towards exercising and achieving your fitness goals every day. Remember, every little step counts in the journey to a healthier and more active lifestyle!