I'm so mad I was late for this. I am pimping Foucault's Pendulum in a book talk tomorrow and it's sitting on the desk next to me.
"freedom to differ is not limited to things that do not matter much. That would be a mere shadow of freedom. The test of its substance is the right to differ as to things that touch the heart of the existing order."
- Justice Robert Jackson, West Virginia State Board of Ed. v. Barnette