Heretics

by G.K. Chesterton

It is foolish, generally speaking, for a philosopher to set fire to another philosopher in Smithfield Market because they do not agree in their theory of the universe. That was done very frequently in the last decadence of the Middle Ages, and it failed altogether in its object.

There is no such thing on earth as an uninteresting subject; the only thing that can exist is an uninterested person.