...so said L Ron Hubbard, who then followed his own advice and set up the Church of Scientology which, according to this estimate brings in something like $500 million a year. Most unsurprising fact revealed: Tom "thumb" Cruise has donated $25 Million. Most upsetting fact: $7.5 million came from Bart Simpson (well, Nancy Cartwright who is the voice of the little scamp).
Say it ain't so Bart!
[Thanks to Caspar Henderson for link]