I understand the phrase "All wo/men are equal" in the sense "Equal in the eyes of God", meaning that noone should consider him/herself better in an absolute sense than anyone else.
Of course, sociologically, economically, re our talents, and in many other ways, we are different.
I just like to think that we are all children of God, we are all limited by Death, Time, and various other categories. We should live to the full, we should seek all the knowledge and experiences we can get, but we should also understand the difference between temporality and eternity.