I swear I only found this in my dissertation notes AFTER writing that last post.
Source: How to be Happy. Written for the Children of Some Dear Friends. By A Lady. [Not this one, thankfully! Probably Lydia Sigourney, according to the American Antiquarian Society.]
The excellent poet, Dr. Watts; says in his hymns for children,
Hard names, and threats, and bitter words
Which are but noisy breath,
May end in blows, and naked swords,
In discord and in death.
Sad accidents have sometimes come from little quarrels among playmates.
That’s some high quality 19th-century children’s literature for you.