He does not kill for the immature and foolish reasons.
He knew it for a foolish reason, if true.
My loss I guess, and you're right, it's a foolish reason to neglect a good source.
"I know the foolish reasons that you have put forth, and none of them are persuasive."
For some foolish reason, I thought you were a gentleman.
And had he, for a dozen foolish reasons, waited too long?
"Because he probably took off in the middle of the night for who knows what foolish reason."
For some foolish reason the enemy, per pilot reports, had set ancient ruined London on fire.
Instead, the emphasis was on "credibility": having got in for whatever reason, wise or foolish, we couldn't just change our minds and get out.
A foolish reason to make a decision, but what was a man to do when a woman refused to see sense?