Dress to survive, not just arrive. (from outdoorsafe.com)

S-T-O-P -- Stop, Think, Observe, and Plan

Hug-a-tree -- If you've done your prep work right, people will be looking for you soon enough. Stay put and wait for help. Don't go looking for it.

The best survival knife is the one you have with you when you need it.

The best place for water is in your stomach. (from http://www.equipped.org/kidprimr.htm )

Don't leave home without it! (thats for gear junkies like me)