以下是一些英文的勵志佳句：
1. Never give up， never lose hope.
2. A positive attitude may not solve all your problems， but it will help you live in the present and look to the future.
3. Success is not final， failure is not fatal： it is the courage to continue that counts.
4. Life is like a box of chocolates， you never know what you’re gonna get. Keep going because there’s always a sweet surprise waiting for you.
5. Success is not the key to happiness. Happiness is the key to success. If you love what you are doing， you will be successful.
6. Believe in yourself. Don’t let anyone tell you that you can’t achieve your goals, because it is only your doubts that will hold you back.
7. The greatest glory in living lies not in never falling， but in rising every time we fall.
8. Success is not the key to happiness. But it is the one and only key to unlock the door of happiness.
9. You miss 100% of the shots you don’t take, so always believe in yourself and never give up.
10. Life is like a box of chocolates， you never know what you’re gonna get, but you can always hope for something delicious!
這些句子都傳達了積極、自信和堅持不懈的信息，鼓勵人們面對挑戰和困難時保持信念和勇氣。