Different yet the same

We are all different yet the same, what makes us different though? the dept of our thoughts and the size of our brain. The size of our head to the length of our feet, our language is the same including the way that we speak. We thing very differently, also yet the same. Whats the difference presented, i would gratefully appreciate someone if they could explain. Cause i do not got, the gist of the fit and the direction that we head in, as a society that should be practicing individuality as well as ....................im stuck..........