John Travolta thinks you should read a book. That's his advice for people who knock Scientology or don't get all the wonderful things it's done for him and his family. In an interview on 'Good Morning America', the actor defended his religion of 40 years yet again, insisting that he's "loved every minute of it."

In the interview, Travolta was asked about Going Clear, the HBO documentary that basically theorizes that Travolta was brainwashed and has been blackmailed into staying in the church — since all of his confessional audits have been taped and kept on file. Members who knew Travolta and left the church argued that Travolta's compliance speaks to the fact that he'd rather stay than have all his secrets get out. 

Travolta has gotten a lot of flack since the documentary premiered. But unless the critics "take the time and read a book," said Travolta in his interview, they're not informed enough to make an opinion. "You'll speculate, and I think that's a mistake," he said.

Travolta, who himself hasn't even seen the movie, said that Scientology has helped him save the lives of others and his own life multiple times. When asked why he thought critics were harping on his religion, he said, "Sometimes when something really works well, it becomes a target." He insisted that the hate is just "because it's not understood."

No word yet from the other Scientology poster boy, Tom Cruise, though.