以下是一些英文激勵字句，供您參考：
1. Never give up.
2. Believe in yourself.
3. Never let setback defeat you.
4. Never back down from a challenge.
5. Never stop striving for your goals.
6. Never stop dreaming.
7. Keep going, never give in.
8. Never let failure get the best of you.
9. Keep pushing forward, never looking back.
10. Never let your dreams be smaller than they should be.
希望這些英文激勵字句能夠激勵到你！