The following are some sentences that express a sunny and optimistic attitude:

1. Facing the sun, you will not see the shadow.

2. Every day is a new beginning, let us welcome it with an optimistic attitude.

3. Even if the world gives you a thousand reasons to cry, you have to find a thousand and one reasons to smile.

4. Keep an optimistic attitude, and good things will happen naturally.

5. No matter how bad yesterday was, don’t let it affect your present and future.

6. Part of the sunshine in life comes from the sun, and part of it comes from our hearts.

7. Mentality determines destiny, let us choose to be optimistic and make life full of sunshine.

8. Face life and work with a sunny and optimistic attitude, and they will also give you sunshine in return.

9. Always expand yourself and the world outside you with a positive and optimistic attitude.

10. True happiness is optimism about life, joy at work, and excitement about career.

11. Whatever you choose, you get. If you choose positivity, you will get positivity; if you choose negativity, you will get negativity. If you choose sunshine, you will get sunshine.

12. Maintain an optimistic and positive attitude, nothing is difficult.

13. Mentality determines everything. Maintain a sunny, positive, tolerant and grateful attitude, and the positive energy of good luck will follow you every day.

14. There is no despair in life, only inability to figure it out; there is no end in life, only inability to see through. Keep a sunny and optimistic attitude, and good luck and beauty will come unexpectedly.