1. How to Treat People

Treat people the way you like to be treated.

Hasan ibn Muhammad Deilami, Aalam al-din fi Sifat al-Moumenin, p.297.

2. Good Temper 

The best of virtues is being good-tempered. 

al-Shaykh al-Saduq, Al-Khisal (The Traits), p.29.

3. Serving Allah in Imam Hasan (AS)'s View

Whoever serves Allah sincerely, Allah will make all the universe serve him/her. 

Warram b. Abi Firas al-Hilli, Tanbih al-khawatir wa nuzhat al-nawazir , vol.2, p.108.

4. Giving Thanks

The one who doesn't give thanks for his/her blessings is a worthless person.

Ibn Shu'ba al-Harrani, Tuhaf al-'uqul, p. 233.

5. The Month of Ramadan

Allah has made the month of Ramadan like a competition for His servants, to compete for His satisfaction with each other through obeying Him. 

Ibn Shu'ba al-Harrani, Tuhaf al-'uqul, p.236.

6. Your Neighbor

Treat your neighbor kindly to be worthy of being a Muslim.

al-'Allama al-Majlisi, Bihar al-anwar, vol.78, p.112.

7. Think and Contemplate

I advise you to think and contemplate since they enliven an insightful person's heart and are the key to wisdom.

Hasan ibn Muhammad Deilami, Aalam al-din fi Sifat al-Moumenin, p.297.

8. Consulting in Imam Hasan (AS)'s Words

Consulting in groups leads you toward success. 

Ibn Shu'ba al-Harrani, Tuhaf al-'uqul, p.233.

9. A True Friend

A true friend is always on your side, whether in hardships or comforts. 

 al-'Allama al-Majlisi, Bihar al-anwar, vol.78, p.114. 

10. The Meaning of Patience according to Imam Hasan (AS) 

Patience means restraining from anger and having yourself under control.

Ibn Shu'ba al-Harrani, Tuhaf al-'uqul, p.227. 

11. Your Creation is Not Vain

O' servants of Allah, beware that Allah had not created you in vain, nor left you on your own. Instead, He had determined the years of your lives and has distributed your sustenance among you. This way, any wise person will realize his/her worth and that he/she won't get more than what has been determined for him/her.

Ibn Shu'ba al-Harrani, Tuhaf al-'uqul, p.234.

12.This Life and the Life that Is to Come

Strive for this life as if you will live forever, and make every effort for the life that is to come as if you will die the next day. 

Muhammad Reza, Ali and Muhammad Hakimi, Al-Hayat (Life), vol.4, p.62.

13. A Reflection on this World by Imam Hasan (AS)

This world is the dwelling of pain and hardship, and whatever rests here is doomed to mortality. Allah had informed us of this world's workings to learn our lessons from it. He has warned us beforehand so that no excuse will remain at the end for us. Therefore, be pious in dealing with what is temporal (i.e., this world) and seek what is eternal (the afterlife). 

Muhammad b. 'Ali b. Shahrashub, Manāqib Āl Abī Ṭālib, vol.4, p.31. 

14. The Quran

Verily, the lights of guidance in this Quran leads toward prosperity. This Quran heals hearts and souls. 

al-'Allama al-Majlisi, Bihar al-anwar, vol.75, p.11.

15. The Right and Wrong

There is a thin line between what is right and wrong; what you see with your own eyes is the right thing, and what you hear or is told about might be wrong. 

Ibn Shu'ba al-Harrani, Tuhaf al-'uqul, p.229.

16. Be Grateful

Being grateful for the blessings and being patient in hardships, are the virtues to which you can't find any negative side. 

Ibn Shu'ba al-Harrani, Tuhaf al-'uqul, p.234.

17. Your Religion 

Verily, people are slaves to this world and its wealth and make their religion a means of reaching their (worldly) purposes and do whatever it takes to build an ideal life. Therefore, when faced with a trial, few will adhere to their religions.

Qadi Nur Allah Shushtari, Ihqaq al-haqq, vol.11, p.234.

18. Know Allah

Whoever knows Allah, will fall in love with Him. 

Warram b. Abi Firas al-Hilli, Tanbih al-khawatir wa nuzhat al-nawazir, vol.1, p.52. 

19. The Blessings 

The blessings are unappreciated as long as they are at hand, yet their worth will be appreciated as soon as they are lost.

al-'Allama al-Majlisi, Bihar al-anwar, vol.78, p.115.

20. Meanness 

Meanness is considering what you own as the reason for your honor, and what you give away as waste. 

Ibn Shu'ba al-Harrani, Tuhaf al-'uqul, p.225.

 21. Poverty 

Poverty is the greed that is not satisfied with anything.

 Ibn Shu'ba al-Harrani, Tuhaf al-'uqul, pp.225&226.

22. Ponder as Imam Hasan (AS) Says

I advise you to piety and constant pondering since thinking is the root of all virtues.

Warram b. Abi Firas al-Hilli, Tanbih al-khawatir wa nuzhat al-nawazir, vol.1, p.52.

23. The Ability to Supplicate

When Allah blesses someone with the ability to supplicate to Him, He surely gives his/her prayers the chance of being granted. 

 al-'Allama al-Majlisi, Bihar al-anwar, vol.78, p.113.

24. An Unnecessary Burden 

Expressing your opinion on the subject, which is not related to you, puts an unnecessary burden on your shoulders.

Ibn Shu'ba al-Harrani, Tuhaf al-'uqul, p.226.

25. The Sign of Abasement

Being afraid of honesty and expressing the truth is a sign of abasement.

Ibn Shu'ba al-Harrani, Tuhaf al-'uqul, p.226.

26. Three Destructive Things in Imam Hasan (AS)'s Words

There are three things that bring destruction to people; pride, greed, and envy. 

al-'Allama al-Majlisi, Bihar al-anwar, vol.78, p.111. 

27. The Best Chance to Forgive

The best chance for a benevolent person to forgive a guilty one is when there is no way out for the latter.

 Hasan ibn Muhammad Deilami, Aalam al-din fi Sifat al-Moumenin, p.297.

28. The Spirit of Generosity

Whoever counts the number of his/her charities, ruins his/her spirit of generosity. 

al-'Allama al-Majlisi, Bihar al-anwar, vol.78, p.113.

29. The Eyes and the Ears

The most insightful eyes are the ones that are fixed only on the goodness and virtues, and the most receptive ears are the ones who listen to advice and make use of them.

 al-'Allama al-Majlisi, Bihar al-anwar, vol.78, p.109.

30. Silence, Recommended by Imam Hasan (AS)

At times, silence is a better companion, even if you are a perfect speaker.

 al-Shaykh al-Saduq, Ma'ani l-Akhbar, section no.401. Hadith no. 62. 

31. The Calamities 

The calamities are the keys to blessings and rewards. 

Hasan ibn Muhammad Deilami, Aalam al-din fi Sifat al-Moumenin, p.297.

32. Worshiping Allah

Whoever seeks to worship [Allah] sincerely, should purify him/herself for this purpose. 

Ibn Shu'ba al-Harrani, Tuhaf al-'uqul, p.236.

33. A Precious Wealth 

No wealth is more precious than wisdom.

 Baha' al-Din 'Ali b. 'Isa al-Irbili, Kashf al-ghumma fi ma'rifat al-a'imma, vol.2, p.198.

34. Wisdom

Treating people good-manneredly is a crucial part of wisdom. 

al-'Allama al-Majlisi, Bihar al-anwar, vol.78, p.111.

35. Teach 

Teach your knowledge to others and learn what others know; this way, you will both improve your own knowledge and learn what you didn't know about.

 Baha' al-Din 'Ali b. 'Isa al-Irbili, Kashf al-ghumma fi ma'rifat al-a'imma, vol.2, p.197.

36. Food for Thought

I wonder how you would think about the food for your body and don't contemplate on the food for your thought? You restrain from eating what is harmful to your body, but fill your mind and soul with what ruins them. 

al-'Allama al-Majlisi, Bihar al-anwar, vol.1, p.218. 

37. Anger

Your [real] thoughts will be revealed in your anger. 

al-'Allama al-Majlisi, Bihar al-anwar, vol.78., p.113.

38. Allah's Satisfaction

I guarantee that Allah will grant the prayers of the one whose only purpose is Allah's satisfaction. 

al-'Allama al-Majlisi, Bihar al-anwar, vol.43. , p.351.

39. Trust Allah

Whoever trusts Allah's best intention,  will only desire what Allah chooses for him/her. 

al-'Allama al-Majlisi, Bihar al-anwar, vol.78., p.106.

40. Alms-Tax

Giving alms-tax (Zakat) does not reduce your wealth.

al-'Allama al-Majlisi, Bihar al-anwar, vol.96., p.23. 

We live in a diverse world with people of varying backgrounds and differences. People have different looks and colors, different cultures and traditions, thoughts and viewpoints, religions and beliefs, etc. However, they all live together on planet Earth where they need to have social connections, relationships and more importantly a sense of togetherness. In fact, the need for belonging to a society or community is the main reason why people seek friends.

However, finding a good friend and building a healthy and strong relationship is not always an easy task. Many factors influence the choice of friends with religion and beliefs being particularly important to people. It becomes even more significant when it comes to Islam, as we have a few verses in the Quran about friendship. These verses have raised the question of whether Muslims can be friends with non-Muslims.

In this text we will go through the verses of the Quran and some narrations to find the answer to the question mentioned above.

What does the Quran say about friendship?

The fact that the Quran emphasizes the issue of friendship in different verses and from different aspects shows the importance of friendship and how friends can influence each other’s lives and destinies. 

There is a verse in the Quran that talks about the regrets of people who end up in hell saying: 
“Woe to me! I wish I had not taken so and so as a friend! Certainly, he led me astray from the Reminder after it had come to me, and Satan is a deserter of man.’” (25: 28-29)

When the Quran talks about the huge shock that disbelievers go through in the hereafter it says:
 “Now we have no intercessors, nor do we have any sympathetic friend.” (26: 110- 101)   

Theses verses show that having a friend is a real need for human beings, even in the next life, and emphasize the fact that friends can either be misleading or genuine. Since the influence of friends is so important on human beings, Allah (SWT) advises us on the characteristics of good and bad friends and guides us on who to befriend and who to avoid. 

Who to befriend and who to avoid?

There are some verses in the Quran in which Allah (SWT) guides us not to take specific people as friends:

1-    Close friends should be of yourselves

“O you who have faith! Do not take your confidants from others than yourselves; they will spare nothing to ruin you. They are eager to see you in distress. Hatred has already shown itself from their mouths, and what their breasts hide [within] is yet worse. We have certainly made the signs clear for you, should you exercise your reason.” (3:118) 

Confidants are close friends with whom we share secrets. In the above verse Allah (SWT) advises us not to take our close friends from among those who are not faithful to us, whether they are Muslims or non-Muslims, since these types of people will try their best to endanger and harm us in any possible way. [1] 

However, the verse emphasizes close friends with whom we share secrets, and does not forbid normal friendship with people to whom we don’t share secrets and have routine conversations in which we can teach them and learn from them. 

2-    Being friends with just polytheists is not forbidden 

“Allah does not forbid you from dealing with kindness and justice with those [polytheists] who did not make war against you on account of religion and did not expel you from your homes. Indeed, Allah loves the just. Allah forbids you only in regard to those who made war against you on account of religion and expelled you from your homes and supported [the polytheists of Makkah] in your expulsion, that you make friends with them, and whoever makes friends with them—it is they who are the wrongdoers.” (60: 7- 8)

Therefore, living a peaceful life alongside those non-Muslims who respect you and your beliefs is not forbidden; rather, it is recommended to have communication with these type of moral and just non-Muslims so that you may convey the words of Allah (SWT) to them in words or by your actions. 
“If any of the polytheists seeks asylum from you, grant him asylum until he hears the Word of Allah. Then convey him to his place of safety. That is because they are a people who do not know.” (9:6)
But let’s study the verses of the Quran that seem to be in contradiction with what we just said, where Allah (SWT) commands us not to befriend a group of people.

3-    Do not befriend enemies of Allah  

“O you who have faith! Do not take My enemy and your enemy for friends, [secretly] offering them affection, if you have set out for jihad in My way and to seek My pleasure, for they have certainly denied whatever has come to you of the truth, expelling the Apostle and you, because you have faith in Allah, your Lord. You secretly nourish affection for them, while I know well whatever you hide and whatever you disclose, and whoever among you does that has certainly strayed from the right way.” (60: 1)

The phrase “my enemy and your enemy” in the above verse shows that the enemies of Allah (SWT) are, in fact, the enemies of believers, too. The logical reason for which Allah (SWT) forbids us from befriending His enemies is that they are not well-wishers for Muslims and try their best to ridicule, humiliate, and weaken the believers. What they wish for the believers is explained in different verses of the Quran: 

“Neither the faithless from among the People of the Book nor the idolaters like that any good be showered on you from your Lord” (2: 105), “They are eager to see you in distress” (3: 118), “The faithless are eager that you should be oblivious to your weapons and your baggage, so that they could assault you all at once” (4: 102), “Indeed they are devising a stratagem” (86: 15).

These verses explain the reasons why Allah (SWT) prohibits us from befriending His enemies and because they try their best to harm us, and the reason for that as explained in the Quran is: 
“Satan has prevailed upon them, so he has caused them to forget the remembrance of Allah. They are Satan’s confederates. Look! Indeed, it is Satan’s confederates who are the losers!” (58: 19)

These verses that advise Muslims to avoid befriending non-Muslims or idolaters are mostly about political relationships between countries where these friendships may endanger the interests of Muslim countries. And if a Muslim befriends non-Muslims or idolater who do not care about the interests of his/her country, they need to be cautious not to share secrets with them and keep their friendship in a level where they are not influenced by those friends. Rather they can affect them positively, because: 

“Allah will never provide the faithless any way [to prevail] over the faithful.” (4: 141)

References: 

1. Qara’ati, M. Tafseer-e Nour, vol. 1, p. 591