More than art

I overheard an english guide saying this interesting comments to the visitors in the Vatican Museum yesterday. " If you are not an artist, you can be an art teacher. If you can't teach, you can be a critic." There sounds a point with a strong sense of humour. 

I'd like to add a sentence though. " If you don't like criticising, you can be an admirer. " Surely you will be more popular then.