What good did it do to be grouchy today?
Did your surliness

drive any trouble away?
Did you cover more ground than you usually do,
Because of the grouch you carried with you?

If not, what's the use of a grouch or a frown,
If it won't smooth a path, or a grim trouble down?
If it doesn't assist you, it isn't worthwhile.
Your work may be hard, but just do it--& smile!