Without the institution of slavery, civilization would never have been achieved, for no one could ever have done anything intellectual if he had to spend all his time hewing and digging and fighting.

Blessed are those who, in the face of death, think only about the front sight.

An unarmed man can only flee from evil, and evil is not overcome by fleeing from it.

Not long ago it was easy to tell who the bad guys were. They carried Kalashnikovs. Now it is much more complicated, but one thing is sure - any man who covers his face and packs a gun is a legitimate target for any decent citizen.

No sensible person ever opens the door of his house without knowing who is knocking.

Anyone who appears to be triggered out of watchfulness and into action by your appearance must be explained. Anyone observing you carefully must be explained. Anyone whose behavior seems to be geared to yours must be explained. If the explanation does not satisfy you, be ready to take appropriate defensive action.

If violent crime is to be curbed, it is only the intended victim who can do it. The felon does not fear the police, and he fears neither judge nor jury. Therefore what he must be taught to fear is his victim.