Answer:
Im not a muslim but here is what i found
Explanation:
Summarising the Quran into a few points is very difficult as it's a manual for the guidance of whole humans life for acheiving peace and prosperity in both the worlds by submitting ourselves to the will of our Creator Allah , So let me try a few
Humans have to worship only their Creator Allah who is the Creator of all that exists and this Creator can never be comparable to his creations in any of his nature and attributes. Sura 112 puts it very accurately. Shirk and kuffar are unforgivably sins unless repented to Allah before death.
Satan is our enemy who wants to misguide us from directions from inside and outside and create s problems between humans ( extremities are included here )
Humans owe their duty to their Parents and cannot utter a word of a little uff or shh ( keep quiet) but take care of them as they took care of you when you were a kid
Follow all the commandments of Allah of haram halal ie prohibited , allowed and follow the pillars of Islam after emaan(beliveing in god) , is 5 times daily prayer, fasting, zakat and haj for those who are affordable . Acquire knowledge including self defence .
Be dutiful and kind and caring to all humans starting with your family first, next your neighbour ( even if he is a non Muslim) teacher, respecting the elder loving the young and never use hard words to any one. Charity followed by insult by words or actions and reminding it later to the receiver is a NO , NO !
Fulfilling the rights of poor and the hungry , needy by way doing extra charity ( Zakat is a tax on every affordable Muslim ) if you do not afford this charity speaking a good word , smile to them is a Charity
Being good to women and the weakest. He is high in the sight of Allah who is a good man in the sight of his women ( Mom,wife , daughter, sister , Aunties etc)
Refer to the last Haj Sermon of Prophet Muhammad PBUH for more summarised points , read the longest collection from Imam Ahmad.Here are more facts to ponder and a short charter the Islamic life for more information go check out : https://www.quora.com/What-is-the-main-message-of-The-Quran
