“One company can serve some of your needs all of the time, or all of your needs some of the time, but never both.”

“You can fool some of the people all of the time, and all of the people, some of the time, but you can fool yourself anytime you need to badly enough.”

“Never assume. Never make plans. Keep doing the press-ups and deep knee bends: you'll need all your strength and flexibility when your life suddenly implodes. Maybe it won't — some people do lead enchanted lives — but odds are that it will. Some time.”

“You can fool some of the people all of the time, and those are the people you need to concentrate on.”

“If you once forfeit the confidence of your fellow citizens, you can never regain their respect and esteem. It is true that you may fool all of the people some of the time; you can even fool some of the people all of the time; but you can't fool all of the people all of the time. -Speech at Clinton, Illinois, September 8, 1854.”

“You can fool some of the people all of the time, and all of the people some of the time, but you can not fool all of the people all of the time.”