“You can be sincere and still be stupid.”
“You can be as sincere as hell and still be wrong.”
“It is dangerous to be sincere unless you are also stupid.”
“Any girl can be glamorous. All you have to do is stand still and look stupid.”
“You can take all the sincerity in Hollywood, place it in the navel of a fruit fly and still have room enough for three caraway seeds and a producer’s heart.”
“Nothing in the world is more dangerous than sincere ignorance and conscientious stupidity.”