My personal favourite;
"Better to ask a stupid question, then to make a stupid mistake"

<img src="/ubbthreads/images/graemlins/silly.gif" alt="" />

Mea Culpa's Demesne Note; artwork for Avatar courtesy of NWN and CEP Old Elven Saying: "Never say Never if you're gonna live forever!!!" "I didn't do it, it wasn't my fault"