For us, the lesson is that our natural fear and grief must not enable the destruction of our institutions. Courage does not mean not fearing, or not grieving. It does mean recognizing and resisting terror management right away, from the moment of the attack, precisely when it seems most difficult to do so.

If you carry a weapon in public service, may God bless you and keep you. But know that evils of the past involved policemen and soldiers finding themselves, one day, doing irregular things. Be ready to say no.

Authoritarianism arrives not because people say that they want it, but because they lose the ability to distinguish between facts and desires.