There's a lot of bad isms, but commercialism is the worst....

[Mr. Potter]

What movie

 

[psucjo]

Miracle on 34th Street

 

[FightOnState]

What movie

One should not believe in an "ism", he should believe in himself. I quote John Lennon, "I don't believe in Beatles, I just believe in me."

 

[fairgambit]

Lot of good isms too. Nudism, for example.