“Consider the source… Don't be a fool by listening to a fool.”

“I don't hate fools, I pity them! (I pity the fool)”

“Don't be a fool for the Devil, darling.”

“Love and devotion, deep as any ocean
don't play by anybody's rules
With your carousel of horses
and your unforeseen forces,
you're running with the caravan of fools
Caravan of fools, caravan of fools
You're running with the caravan of fools”

“Only fools don't contradict themselves”

“Don't be fooled by your own wisdom”

“According to mainstream non-religious sources, a fool is one who too readily accepts improbable assertions from questionable sources on insufficient evidence. So it is no wonder that the Bible and the Qur’an both use the opposite definition, so that the wise are called foolish and only fools are wise. By definition, one would have to be a fool to be fooled by either book. As for “putting things right”, the only way to do that is to identify unsupported assertions and examine what the facts really indicate, and that always goes against faith.”

“Don't be fooled into turning to Communism looking for food. ]]”

“There are three kinds of fools in this world, fools proper, educated fools and rich fools. The world persists because of the folly of these fools.”

“We have electrocuted your God. Don't be a fool.”