Who said "Faith is the belief in something you know isn't true."?

This quote is attributed to Professor Farnsworth.

Faith is the belief in something you know isn't true. - Professor Farnsworth

"Faith is the belief in something you know isn't true."

Professor Farnsworth Faith

"Good news, everyone!"

"I'm going to build my own theme park, with blackjack and hookers!"

"Why must I be surrounded by these incompetent fools?"

"To shreds, you say?"

"Faith guides me through difficult times."

"Faith is believing when you can't see."

"You have to believe in something, or you'll fall for anything."

"Faith in God and in each other is what sustains us"