Here's a great quote from a recent post to Rocketbox Comics:

"Cartooning is a 'fairly' sort of proposition. You have to be fairly intelligent - if you were really intelligent, you would be doing something else. You have to draw fairly well - if you drew really well, you'd be a painter. You have to write fairly well - if you wrote really well, you'd be writing books. It's great for a 'fairly' person like me." - 1967, Charles Schultz, creator of "Peanuts"