The strongest reason for the people to retain the right to keep and bear arms is, as a last resort, to protect themselves against tyranny in government.
Was the government to prescribe to us our medicine and diet, our bodies would be in such keeping as our souls are now.
I would rather be exposed to the inconveniences attending too much liberty than to those attending too small a degree of it.
“Laws that forbid the carrying of arms…disarm only those who are neither inclined nor determined to commit crimes… Such laws make things worse for the assaulted and better for the assailants; they serve rather to encourage than to prevent homicides, for an unarmed man may be attacked with greater confidence than an armed man.” (Quoting Cesare Beccaria)
The beauty of the Second Amendment is that it will not be needed until they try to take it.