All things in the universe are entirely interdependent. Things that are interdependent are related to one another in such a close way that each one needs the other in order to exist. The universal law governing this inter-relatedness is also generally applicable to human society, in the sense that, in the human world, great things can happen when each individual plays his own role without interfering in the sphere of others.
The world is full of friends. Someone is your actual friend; another is your potential friend. This is one of the universal concepts given in the Quran. A relevant verse from the Quran on this subject.
Good and evil deeds are not equal. Repel evil with what is better; then you will see that one who was once your enemy has become your dearest friend. (41:34) These Quranic verses have a background. When the Prophet of Islam was an ancient Mecca, people became hostile to him and to his mission. Clearly, it was an undesirable situation for both the Prophet and his companions.
At this moment of crisis, the prophet and his companions were given the above guidance.
This formula worked very well. Very soon hostilities ceased altogether. The majority of those who had been hostile became the friends of the Prophet- first in Mecca and then gradually throughout the whole of the Arabian Peninsula.
Why did this formula prove to be so effective? The reason is very simple, good behavior in return for bad behavior has a far-reaching effect; it touches the conscience of others. And it is a fact that when you are able to touch the conscience of the other person, you will successfully change his heart. According to the law of nature, this behavior is like a psychological compulsion; no one can afford to go against his conscience.
This Quranic teaching is based on a principle that may be called unilateral ethics. Bilateral ethics is not part of the social scheme of the Quran.
There is no doubt that in terms of results, unilateral ethics is far more effective than bilateral ethics.