The essence of all human rights is the equality of the entire human race, which the Qur’ān assumed, affirmed, and confirmed. It obliterated all distinctions among men except goodness and virtue (taqwā): The reason the Qur’ān emphasizes essential human equality is that the kind of vicious superiority which certain members of this species assert over others is unique among all animals. This is where human reason appears in its most perverted forms.
Fazlur Rahman, Major Themes of the Qur'an
islam