Question
G.I.Joe Barracuda themed toys at the flea market

Which phrase ended every "G.I. Joe: A Real American Hero" PSA cartoon?

Last updated: May 1, 2026

"G.I. Joe: A Real American Hero" was a cartoon airing between toy commercials, but it capped each episode with a quick safety lesson. A Joe rescued a kid from a downed power line, then turned to the camera for the same five-word coda. Which phrase capped each "G.I. Joe: A Real American Hero" PSA?

Correct Answer: Knowing is half the battle

(Source)

Hasbro hired a real Harvard education professor, Dr. Robert Selman, to oversee the lessons, which seems like a lot of academic muscle for a 22-minute toy ad. Each one ended the same way, with a kid yelping "Now I know!" and whichever Joe was on duty answering "And knowing is half the battle." The line has wound up in locker rooms, sitcoms, and corporate slide decks ever since. I bet half the people quoting it couldn't name a single Cobra plot the Joes ever foiled.

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