You are the best nation produced [as an example] for mankind. You enjoin what is right and forbid what is wrong and believe in Allah. If only the People of the Scripture had believed, it would have been better for them. Among them are believers, but most of them are defiantly disobedient. - Quran:Ali 'Imran 3:110 (islam)

-Can you choose what is right or wrong?
- What about having a friend with no religion or from another religion?
- What about the women who don't want to wear the veil?

Those who follow the Messenger, the unlettered prophet, whom they find written in what they have of the Torah and the Gospel, who enjoins upon them what is right and forbids them what is wrong and makes lawful for them the good things and prohibits for them the evil and relieves them of their burden and the shackles which were upon them. So they who have believed in him, honored him, supported him and followed the light which was sent down with him - it is those who will be the successful. - Quran:Al-A'raf 7:157 (islam)

-Who defines what is good, evil, lawful and impure?
- What about homosexuality, fornication, eating non Halal, refusing the veil etc...?

The believing men and believing women are allies of one another. They enjoin what is right and forbid what is wrong and establish prayer and give zakah and obey Allah and His Messenger. Those - Allah will have mercy upon them. Indeed, Allah is Exalted in Might and Wise. - Quran:At-Tawbah 9:71 (islam)

-Can you refrain from meddling with others and staying a good Muslim?

And let there be [arising] from you a nation inviting to [all that is] good, enjoining what is right and forbidding what is wrong, and those will be the successful. - Quran:Ali 'Imran 3:104 (islam)

-What is good, and do you know?
- Is homosexuality good?
- Is celibate good?