If the sin involves the rights of another person then what form should repentance take?

I hope that you can explain the virtue of the Sahaabah and what distinguishes them from others?

What are the most important rights that are respected in Islam?

My friends and I get together one night a week to recite a few verses of the Book of Allah, so as to learn how to recite the Qur'an, then after that we talk about various things. But we heard that it is not permissible to gather to recite Qur'an and that is only permissible for the purpose of memorization. Is this true?

What is zuhd (asceticism)? Does it mean wearing scruffy clothing, fasting constantly, and keeping away from society, or something else?

When a person repents, he makes a vigorous start and says: "The Shaytaan is telling me to slow down", so he does more acts of worship. Then his enthusiasm cools down, and he says: "Allah does not burden any person beyond his scope", and his acts of worship become less until he goes back to the way he was. 

My question: What advice can you give? Should he make a vigorous start, or take a gradual approach until it is established and then add more after a while, or should he follow the saying: "When your wind blows, then make the most of it"?.

Is it permissible to ask the Muslims -when meeting with them- about the state of their faith or their hearts? One of them said to me that this is a matter of the unseen and that it is not appropriate to ask about it.

What are our duties towards our Muslim brothers who have been stricken by calamities and disasters throughout the world?

I want to make my children keen to pray, because they will pray once then forget about prayer many times. I always advise them and pray to Allah to guide them. How can I encourage them and make them love prayer?.

For how long does Allah forgive a person's sin? If he repents and seeks forgiveness from his sin, then goes and commits the same sin again, then he seeks forgiveness again then commits the same sin again, and so on, does Allah forgive him or does that mean that he is not sincere towards Allah, especially if he repeats that sin after a short while, but he does not stop seeking forgiveness?

I read the words: "The scholars are unanimously agreed that fatwas may change according to time, place, local custom and situation so it is essential to take new developments into account". But I am not convinced of this. Is this view correct? I hope that you can answer with evidence from shareeطah and the Sunnah. May Allah reward you with good.

Is it true that the person who is used to studying in Islamic schools, and has no previous experience of studying in non-Islamic schools, will never be able to connect with the environment that surrounds him, where most of the people are non-Muslims and that he will grow up shy and will never find any way to succeed either in his academic life or in the workplace? What is your opinion about that?