I think this means:
If it's possible for a human being to do something, don't just say that he can't, just let him try, give him a chance.
1. Opening
2. Bought
3. Smoking
4. Have to
5. If I liked
6. Remembering
7. You were born
8. To help
9. To stop
10. To ask
11. To shop
12. Not to
13. Drink
14. Told
15. Would help
16. Had spoken
17. Asked
18. To buy
19. To come
20. To find out