Be Careful. Rhymes and Jingles by Mary Mapes Dodge for children
Never in a fool's mouth
Thrust your careless finger;
If you do, there's danger
It may chance to linger.
Never to the foolish
Tell your dearest thought;
Or you'll find your confidence,
Like your finger, "caught."
Never with the silly
Banter, sport, or jest;
Even for your frolics
Wise friends are the best.