“April 1. This is the day upon which we are reminded of what we are on the other three hundred and sixty-four.”
— Mark Twain, “Pudd’nhead Wilson,” 1894.

“April fool, n. The March fool with another month added to his folly.”
— Ambrose Bierce, “The Devil’s Dictionary.”

“A common mistake that people make when trying to design something completely foolproof is to underestimate the ingenuity of complete fools.”
— Douglas Adams

“I have great faith in fools – self-confidence, my friends call it.”
— Edgar Allan Poe

“You can fool all the people some of the time, and some of the people all the time, but you cannot fool all the people all the time.”
— Abraham Lincoln

“You can fool some of the people all the time, and those are the ones you want to concentrate on.”
— George W. Bush

“There is no greater fool than the fool who thinks he is fooling others.”
— Brother Joachim Salamander

“Probably no more than 20 percent of the population are true full-time fools, but isn’t it amazing that they all like exactly the same things and vote the same way?”
— George Henry O’Brien