The Colonel's four rules have been an endless source of discussion since he promulgated them. They are a good starting point for discussion and are easily remembered.
They are perhaps his greatest legacy to the shooting community.
The place for beginners, or anyone else, to talk about gun, gear, and shooting topics with a minimum of jargon and/or geekery. The only stupid question is the one you don't ask that blows up in your face later.