There is only one step
from fanaticism to barbarism.
Extremism means borders beyond which life ends,
and a passion for extremism, in art and in politics,
is a veiled longing for death.
"Those to whom evil is done
Do evil in return."
From the earliest dawnings of policy to this day, the invention
of man has been sharpening and improving the mystery of murder,
from the first rude essays of clubs and stones, to the present
perfection of gunnery.
A Vindication of Natural Society