Good and Bad Children by Robert Louis Stevenson
Children you are very little
and your bones are very brittle
If you would grow great and stately
you must try to walk sedately.
You must still be bright and quiet
and content with simple diet
and remain through all bewild’ring
innocent an honest children.
Happy hearts and happy faces.
Happy play in grassy places.
That was how, in ancient ages,
Children grew to kings and sages.
But the unkind and the unruly
and the sort who eat unduly,
They must never hope for glory
Their’s is quite a different story!
Cruel children, crying babies
all grow up as geese and gabies.
Hated, as their age increases
by their nephews and their nieces.