鼓励明天会更好的句子有很多，以下是一些常见的英语句子：

1. 'Every day is a new beginning. Take a deep breath, smile, and start again.'

2. 'Believe in yourself and all that you are. Know that there is something inside you that is greater than any obstacle.'

3. 'The future belongs to those who believe in the beauty of their dreams.'

4. 'Don't let yesterday take up too much of today.'

5. 'Success is not final, failure is not fatal: It is the courage to continue that counts.'

6. 'The only way to do great work is to love what you do. If you haven't found it yet, keep looking. Don't settle.'

7. 'The best way to predict your future is to create it.'

8. 'Your present circumstances don't determine where you can go; they merely determine where you start.'

9. 'The greatest glory in living lies not in never falling, but in rising every time we fall.'

10. 'The only limit to our realization of tomorrow will be our doubts of today.'

这些句子都鼓励人们相信自己，不要放弃，要坚持追求自己的梦想，因为无论遇到什么困难，只要保持信念，明天就会更好。