“there is a fine line between sarcasm and hostility, you seemed to have crossed it. What's up?”

“There’s a fine line between bravery and stupidity, which should never be crossed.”

“I find it very scary that people try to profit off of things like genetically manipulating things. For what? There’s a fine line between progress and cruelty. If you change something in nature can you ever really go back and have we already crossed that line?”

“What shall I say? I must tread a fine line between glaciosity and friendlinosity. With just a hint of 'you don't know what you are missing, my fine-feathered friend.”

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

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

“Its a fine line between love and stalking.”

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

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

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