Alexander the Great, the embodiment of power, approached notorious hobo philosopher Diogenes the Cynic and asked if there was anything he can do for him. Sunbathing Diogenes asks Alexander if he wouldn't mind stepping to the side a bit, as he is blocking the light.
Alexander is able to compel armies and lay countries to ruin, but Diogenes is resistant to all compulsion but is without land, possessions, rank, title, nobility, reputation, and so on. There is nothing you can take away from him he hasn't already given up, no hardship you can impose on him that he does not willingly endure. Even the times he is de facto enslaved, he is still free, because he willingly subjects himself to any punishment.
It would be an absurd conclusion that the reason Diogenes is able to make a mockery of this request is because this homeless man is more powerful than Alexander the Great.