1. An apple a day keeps the doctor away.
2. Never too old to learn, never too late to turn.
3. Rome wasn't built in a day.
4. Do as the Romans do.入乡随俗。
5. A friend in need is a friend indeed.
6. Practice makes perfect.
10. Love me, love my dog.
11. Like father, like son.
13. As cool as a cucumber; as close as an oyster.
14. Diamond cuts diamond.
15. Nothing seek, nothing find.
16. Nothing brave, nothing have.
17. A good beginning makes a good ending.
18. No man can do two things at once.
19. No one can call back yesterday.
20. No sweet without sweat.
21. No smoke without fire.
22. Do well and have well.
23. Nothing in the world is difficult for one who sets his mind to it.
24. Don't trouble trouble until trouble troubles you.
25. Don't try to teach your grandmother to suck eggs.
26. Nothing is to be got without pains but poverty.
27. Not to advance is to go back.
28. No way is impossible to courage.
29. Observation is the best teacher.
30. Offense is the best defense.
31. Old friends and old wines are best.
32. Once bitten, twice shy.
33. One false move may lose the game.
34. One man's fault is other man's lesson.
35. One's words reflect one's thinking.
36. Man proposes, God disposes.
37. Out of debt, out of danger.
38. Out of sight, out of mind.
39. Penny wise, pound foolish.
40. Praise is not pudding.
41. Prefer loss to unjust gain.
42. Prevention is better than cure.
43. Pride goes before, and shame comes after.
45. Still water run deep.
46. Short accounts make long friends.
47. Success belongs to the persevering.
48. Take things as they come.
49. Fools learn nothing from wise men, but wise men learn much from fools.
50. Life is a tragedy when you feel. It is a comedy when you think.