Themes
Kindness is loving people more than they deserve.
— Joseph Joubert

Behind the line May contain spoilers.
Our reading
An editorial interpretation.
Kindness, in this view, means giving people more love than they've earned. It isn't a reward for good behaviour but a generosity that goes past fairness. The speaker frames kindness as a deliberate surplus, a gift offered to someone regardless of whether they deserve it.
Context reviewed