“There is a fine line between insanity and genius.”

“There's a fine line between criminality and genius."
-Dan Cahill”

“A lot of people say there's a fine line between genius and insanity. I don't think there's a fine line, I actually think there's a yawning gulf. You see some poor bugger scuffling up the road with balloons tied to his ears, he's not going home to invent a rocket, is he?”

“The distance between insanity and genius is measured only by success”

“The difference between insanity and genius is measured only by success and failure.”

“There's a fine line between audacity and idiocy.”

“Its a fine line between love and stalking.”

“Sadly, there is a fine line between patriotism and paranoia.”

“It's a fine line between Saturday night and Sunday morning.”

“There's a fine line between a superpower and a chronic medical condition.”