1. 交友应学人长；处事当克己短。

1. In making friends, one should learn from others' strengths; in dealing with affairs, one should conquer one's own shortcomings.

2. 树直用处多，人直朋友多。

2. A straight tree has many uses, and a straight person has many friends.

3. 交浅不可言深，交深不可言浅。

3. One cannot talk deeply with someone who has a shallow relationship, nor can one talk shallowly with someone who has a deep relationship.

4. 炼铁需要有硬火，交友需要有诚心。

4. Iron smelting requires a strong fire, and making friends requires sincerity.

5. 虚伪有朋友，遇事常哈腰。

5. Pretentious individuals have friends, and they often kowtow when faced with difficulties.

6. 以仁会友，以友辅仁。

6. Make friends with those who embody benevolence, and use friends to cultivate benevolence.

7. 火暖身，人暖心。

7. Fire warms the body, and people warm the heart.

8. 单丝不成线，独木不成林。

8. Single threads do not make a rope, and a single tree does not make a forest.

9. 马的好坏骑着走，朋友的好坏走着瞧。

9. A horse's quality is tested by riding it, and a friend's quality is assessed by walking with them.

10. 帮助别人要忘掉，别人帮助要记牢。

10. For helping others, forget it; for being helped by others, remember it.

11. 万两黄金容易得，知心一个也难求。

11. It's easy to get ten thousand taels of gold, but it's hard to find a close friend.

12. 上路前先找好同伴。

12. Find a companion before hitting the road.

13. 今日乐相乐，别后莫相忘。

13. Rejoice in the joy of today; do not forget each other after parting.

14. 宁喝朋友水，不吃敌人蜜。

14. It's better to drink water from a friend than honey from an enemy.

15. 合意友来情不厌，知心人至话投机。

15. Friends of agreement come and the affection is never tired, close friends meet and their words are always in tune.

16. 广交不如择友，投师不访友。

16. It's better to choose friends than to have numerous acquaintances, and it's better to seek a teacher than to visit friends.

17. 友直，友谅，友多闻。

17. Be a friend who is honest, forgiving, and well-informed.

18. 鱼交鱼，虾结虾，蛤蟆找的蛙亲家。

18. Fish mate with fish, shrimp pair with shrimp, and frogs seek out frog in-laws.

19. 广交不如择友，投师不如访友。

19. It's better to choose friends than to have many acquaintances, and it's better to visit friends than to seek a teacher.

20. 同是天涯沦落人，相逢何必曾相识。

20. We are both lost souls in a distant land; why should we need to have known each other before?

21. 少年乐相知，衰暮思故友。

21. Youth delights in making new friends, old age pines for old companions.

22. 交情深重金相似；诗韵铿锵玉不如。

22. Deep friendships are like gold; poetic rhythms are more resounding than jade.

23. 直言朗语的人好办事情，不言不语的人难打交道。

23. It is easy to deal with people who speak out clearly, but it is hard to work with those who remain silent.

24. 相知无远近，万里尚为邻。?>

24. Friendship knows no distance, ten thousand miles are still neighbors.

25. 朋友越老越好，美酒越老越香。

25. The older the friend, the better; the older the wine, the sweeter.

26. 婴其呜矣，求其友声。

26. The baby cries, seeking a friend's voice.

27. 去时留人情，转来好相见。

27. Leave a good impression when leaving, and it will be pleasant to meet again.

28. 路直有人走，人直有人交。

28. If a road is straight, someone will walk it; if a person is straightforward, someone will befriend them.

29. 瓜无滚圆，人无十全。

29. Melons are not perfectly round, and people are not perfect either.

30. 浇树浇根，交友交心。

30. Water the tree at its roots, and make friends with your heart.

31. 损友敬而远，益友敬而亲。

31. Respect and keep distance from harmful friends, and respect and be close to beneficial friends.

32. 珍珠挂在颈上，友谊嵌在心上。

32. Pearls hang around the neck, and friendship is embedded in the heart.

33. 贵易交，富易妻。

33. Rich men change friends easily, and wealthy men change wives easily.

34. 节令不到，不知冷暖；人不相处，不知厚薄。

34. Without the changing seasons, one does not know the difference between cold and warmth; without interacting with others, one does not know the difference between kindness and insensitivity.

35. 卑鄙与狡诈的开始，就是友谊的终结。

35. The beginning of baseness and cunning is the end of friendship.

36. 朋友多了路好走。

36. Having many friends makes the journey easier.

37. 脚长沾露水，嘴长惹是非。

37. The feet are long and沾露水，the mouth is long and惹是非. (Note: The original text uses a poetic structure where "脚长" and "嘴长" are used metaphorically to describe certain behaviors. The translation attempts to maintain the poetic nature of the original text.)

38. 与朋友交，言而有信。

38. In friendship, speak with integrity and keep your word.

39. 不打不相识。

39. You can't know someone without fighting with them.

40. 以势交者，势尽则疏；以利合者，利尽则散。

40. Those who make friends based on power will grow distant when the power wanes; those who unite for profit will disperse when the profit is exhausted.

41. 挨金似金，挨玉似玉。

41. Touching gold feels like gold, touching jade feels like jade.

42. 跟好人，学好人，跟虎狼，学妖精。

42. Keep company with the good, and you will become good; keep company with tigers and wolves, and you will become a demon.

43. 朋友千个少；冤家一个多。

43. The fewer friends, the better; the more enemies, the worse.

44. 真朋友遇难就帮，假朋友遇难就嚷。

44. True friends help in times of trouble, while false friends shout about it.

45. 千个朋友嫌少，一个敌人嫌多。

45. Too few friends when you have a thousand, too many enemies when you have one.

46. 近朱者赤，近墨者黑。

46. "Those who associate with the red will turn red, and those who associate with the black will turn black."

47. 蜜糖算最甜，友谊的话比蜜糖还甜。

47. Honey is the sweetest, but friendship is sweeter than honey.

48. 岁寒知松柏，患难见交情。

48. The cold of winter reveals the strength of pine and cypress trees, and adversity shows true friendship.

49. 尺有所短，寸有所长。

49. Every inch has its shortcoming, and every foot has its strength.

50. 结交不嫌贫，嫌贫友不成。

50. Make friends without being choosy about wealth, for one cannot have friends who are choosy about wealth.