The phrase "an act of foolishness" is correct and usable in written English.
It can be used to describe a specific action that is considered unwise or lacking in judgment.
Example: "Deciding to invest all his savings in a risky venture was truly an act of foolishness."
Alternatives: "a foolish deed" or "an act of folly".
It is not just an act of foolishness, but of apocalyptic arrogance.
He remembers thinking that it was an "act of foolishness, a horrible mistake".
On the contrary, it was an act of foolishness that undermined due process.
He remembers thinking that it was an "act of foolishness, a horrible mistake". His wife was a thoughtful and at times energetic citizen, who organized small-scale campaigns for local issues; like him, she was opposed to Russia's involvement in the war in eastern Ukraine, but she was not a committed activist, let alone some sort of spy.
Russians call the seeds pukh -- reasonably enough, since pukh is Russian for "tuft". This is pukh season in Moscow, a period when windows remain shut, when yawning outdoors is an act of foolishness, when Muscovites shrug good-humoredly at their "summer snow," but when they also carry handkerchiefs, wear sunglasses and assiduously wash down the streets.
This is pukh season in Moscow, a period when windows remain shut, when yawning outdoors is an act of foolishness, when Muscovites shrug good-humoredly at their "summer snow," but when they also carry handkerchiefs, wear sunglasses and assiduously wash down the streets.
The slaughter is blamed on a fellow-student, Lord Poxe, who is censured by the Warden with the words "It was a foolish act, Lord Poxe, an act of wanton foolishness, but I do not wish to be hard on you...
The slaughter is blamed on a fellow-student, Lord Poxe, who is censured by the Warden with the words "It was a foolish act, Lord Poxe, an act of wanton foolishness, but I do not wish to be hard on you.... Lady Emily Crane, your great aunt, you will remember, married a Mr Arthur Thorn, my grandfather.
It's an act of real foolishness to walk into that nonsense.
"This is an act of political foolishness so profound, I'm, to this day, at a loss for words.
"To repeat that act would be a tragic act of foolishness and waste," he said.
