1) Cause Katrina happens. 2) Without the second amendment the first one wouldn't exist. 3) an armed society is a polite society.
It's really hard to explain to people that we live in a fragile state of peace that many don't realize could deteriorate in a matter of minutes. Not to far back in history guns meant your survival and that state of life is never far away. Quotes help, consider them rounds in the chamber you need to shoot them at the right times.
"But if someone has a gun and is trying to kill you ... it would be reasonable to shoot back with your own gun."
- Dalai Lama
“A fear of weapons is a sign of retarded sexual and emotional maturity”
Sigmund Freud quotes
When the government fears the people, there is liberty. When the people fear the government, there is tyranny."
–– Thomas Jefferson
You cannot invade the mainland United States. There would be a rifle behind each blade of grass.
Japanese Admiral Yamamoto, 1941
The Second Amendment is a doomsday provision, one designed for those exceptionally rare circumstances where all other rights have failed –– where the government refuses to stand for reelection and silences those who protest; where courts have lost the courage to oppose, or can find no one to enforce their decrees. However improbable these contingencies may seem today, facing them unprepared is a mistake a free people get to make only once. Justice Alex Kozinski, US 9th Circuit Court, 2003
..and he who has no sword, let him sell his garment and buy one." — Jesus Christ, Luke 22:36