Noses and Fists
Your right to swing your fist ends where my nose begins.
A very common sentiment. What is rarely appreciated, though, is that we have as much right to swing our fists as to have an undamaged nose. In order to exercise both rights, we have to reserve spaces for fist-swinging, places where unauthorized noses are prohibited.
Otherwise, people who stick their noses where they don’t belong can exert absolute control over the actions of others.
My right to swing my fists ends where your nose begins only so long as you keep your nose out of my business.