Simplify the following text for a Grade 7 native English-speaking person.
Original: Speaking of popular entertainment in London , Fielding 's character Luckless claims , `` If you must write , write nonsense , write operas , write entertainments , write Hurlothrumbos , set up an Oratory and preach nonsense , and you may meet with encouragement enough . '' Luckless 's only ambition is to become successful .
Simplified: His character Luckless states that for someone to become successful they must write nonsense .