This is the day (April Fool's Day) upon which we are reminded of what we are on the other three hundred and sixty-four. - Mark Twain

The first of April, some do say
Is set apart for All Fool's Day;
But why the people call it so
Nor I, nor they themselves, do know,
But on this day are people sent
On purpose for pure merriment.
- Poor Robin's Almanac

If a million people believe a foolish thing, it is still a foolish thing. - Anatole France

There is a foolish corner even in the brain of the sage. - Aristotle

Wise men don't need advice. Fools won't take it. - Benjamin Franklin

Wise men learn more from fools than fools from the wise. - Cato the Elder

Silence is foolish if we are wise, but wise if we are foolish. - Charles Caleb Colton

The mistakes of the fool are known to the world, but not to himself. The mistakes of the wise man are known to himself, but not to the world. - Charles Caleb Colton

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

Build a system that even a fool can use, and only a fool will want to use it. - George Bernard Shaw

You don't have to fool all the people all of the time; you just have to fool enough to get elected. - Gerald Barzan

There are more fools in the world than there are people. - Heinrich Heine

Nature makes only dumb animals. We owe the fools to society. - Honore De Balzac

Take all the fools out of this world and there wouldn't be any fun living in it, or profit. - Josh Billings

Hain't we got all the fools in town on our side? And ain't that a big enough majority in any town? - Mark Twain

Let us be thankful for the fools; but for them the rest of us could not succeed. - Mark Twain

If you send a damned fool to St. Louis, and you don't tell them he's a damned fool, they'll never find out. - Mark Twain

If all the fools in this world should die, lordly God how lonely I should be. - Mark Twain

The trouble ain't that there is too many fools, but that the lightning ain't distributed right. - Mark Twain

Ah, well, I am a great and sublime fool. But then I am God's fool, and all His work must be contemplated with respect. - Mark Twain

Wise people are foolish if they cannot adapt to foolish people. - Michel Eyquem de Montaigne

Fortune, seeing that she could not make fools wise, has made them lucky. - Michel Eyquem De Montaigne

Wise men talk because they have something to say; fools talk because they have to say something. - Plato