Here are 13 or more encouraging short sentences in English:

1、Success is the cumulative result of unremitting efforts.

2、You have within you a power to reach any goal you can imagine.

3、Hard work and persistence are the ultimate success formulas.

4、A small start is often the beginning of a great achievement.

5、The only limits that exist are the ones we set for ourselves.

6、Success is not a destination, but a journey that requires continuous effort.

7、Believe in yourself and your dreams, and never give up on your goals.

8、Success is not final, failure is not fatal; it is the courage to continue that counts.

9、Your future is not determined by your circumstances, but by your own ambitions.

10、Failures can often serve as the stepping-stone to a higher success level.

11、Determination, coupled with confidence and positive attitude, are critical elements to achieving goals.

12、With the right effort and commitment, any dream can become a reality.

13、Embrace each challenge as an opportunity to learn, grow and ultimately succeed.

14、Each morning brings an opportunity to begin again with an unblemished mindset, where past failures can become distant memories in a sea of ongoing achievements.

Remember these sentences for moments when you need some inspiration and motivation to keep moving forward towards your goals!