In our infinite ignorance we are all equal

Here is a humbling quote from Karl Popper‘s lecture On the Sources of Knowledge and of Ignorance, emphasis mine:

I believe that it would be worth trying to learn something about the world even if in trying to do so we should merely learn that we do not know much. This state of learned ignorance might be a help in many of our troubles. It might be well for all of us to remember that, while differing widely in the various little bits we know, in our infinite ignorance we are all equal.