Maria Shriver and a friend fired off some advice -- possibly to Arnold Schwarzenegger -- during a stroll in L.A. today ... courtesy of their not-so deep tees.
Shriver's top said, "Change the world with your courage, wisdom and strength" -- while her friend sported the less wordy ... yet equally preachy, "Karma."
Maria Shriver to World -- Read My CHEST!!
5/11/2011 2:45 PM PDT BY TMZ STAFF
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