Themes
I believe that what we become depends on what our fathers teach us at odd moments, when they aren't trying to teach us. We are formed by little scraps of wisdom.
— Umberto Eco

Behind the line May contain spoilers.
Our reading
An editorial interpretation.
The speaker believes people are shaped less by formal lessons from their fathers than by offhand remarks made when no teaching was intended. Who we become is assembled from small, casual scraps of wisdom picked up almost by accident.
Context reviewed