Wisdom comes with age, but keep it to yourself.

The line plays on the familiar proverb “wisdom comes with age,” then undercuts it with a comic, slightly cynical addendum: “but keep it to yourself.” Read as Roach-style humor, it suggests that whatever hard-won insights aging brings may be unwelcome, unmarketable, or socially inconvenient—people often prefer optimism, novelty, or certainty over nuanced experience. It can also be taken as a jab at the stereotype of the lecturing elder: even if you’ve learned something true, broadcasting it may come off as smug or joyless. The wit lies in turning “wisdom” from a public good into a private possession, highlighting the social friction between experience and audience.