a 'fairly' kind of proposition

"Cartooning is a 'fairly' kind of proposition. You have to be fairly intelligent, if you were really intelligent, you'd be doing something else; you have to draw firly well- if you drew really well, you'd be a painter; you have towrite fairly well- if you wrote really well, you'd be writing book. It's great for a 'fairly' person like me." ~ Charles M. Schulz