What is a sentence for the word foolishness?

Answer 1

"The students did not relize that their foolishness might result in an accident."

"In most academic pursuits, foolishness is not tolerated."

"Although some considered the purchase of Alaska to be foolishness, it proved to be an incredible bargain."

(quotations)

"First love is only a little foolishness and a lot of curiosity."

"Pain and foolishness lead to great bliss and complete knowledge, for Eternal Wisdom created nothing under the sun in vain."

Answer 2

That was an incredibly foolish thing to do!