There are numerous verses in the Quran that mention the importance of good relationships with other people and being kind and just towards them. For example, chapter 4, verse 36 says: "And worship Allah and associate nothing with Him, and be kind to parents, and relatives, and orphans, and the needy, and the near neighbor, and the neighbor far away, and the companion at your side, and the traveler, and those whom your right hands possess. Indeed, Allah does not like those who are self-deluding and boastful."

Furthermore, chapter 49, verse 13 states: "O mankind, indeed We have created you from male and female and made you peoples and tribes that you may know one another. Indeed, the most noble of you in the sight of Allah is the most righteous of you. Indeed, Allah is Knowing and Acquainted."

These verses and many others emphasize the importance of treating others with kindness, compassion, and fairness. They also promote the idea of unity and understanding between different people and encourage us to strive towards being better individuals for the sake of our relationships and interactions with others.

In conclusion, while worldly pleasures may bring temporary joy, it is our relationships with other people that truly matter in the grand scheme of things. The Quran encourages us to prioritize these relationships and to work towards creating a society that is just, compassionate, and caring towards all people.