just goes to show

(It) just goes to show (you) (something).

That incident or story has an important moral or message. Tom: The tax people finally caught up with Henry. Sally: See! It just goes to show. Angry at the young grocery clerk, Sally muttered, "Young people. They expect too much. It just goes to show you how society has broken down."
See also: goes, just, show
References in periodicals archive ?
It just goes to show how ruthless Fair City writers can be.
It just goes to show, you get badly behaved people everywhere.
DAMIEN Johnson's goal against Albion was very well taken but it just goes to show how much Blues are held back by Steve Bruce.