“It's not what we don't know that hurts. It's what we know that ain't so.”

“The problem ain't what people know. It's what people know that ain't so that's the problem.”

“Ignorance lies not in the things you don't know, but in the things you know that ain't so.”

“If you want to be successful, it's just this simple. Know what you are doing. Love what you are doing. And believe in what you are doing.”

“Things ain't what they used to be and probably never was.”

“I'll bet you the time ain't far off when a woman won't know any more than a man.”

“It's almost been worth this depression to find out how little our big men know.”