a fool at 40 is a fool forever

a fool at 40 is a fool forever

proverb Someone who reaches middle age and continues to act foolishly is unlikely to start acting more maturely. A: "He's way too old to be spending his money so frivolously." B: "I know. A fool at 40 is a fool forever." What did Uncle Al think would happen if he tried to hide his profits to avoid the taxes? Geez, a fool at 40 is a fool forever. Are you seriously getting divorced for the third time? I guess it's true what they say—a fool at 40 is a fool forever.
See also: 40, fool, forever
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