* Unconditional love: Lester, despite his cynicism and fear, loves Despereaux deeply. This love motivates him to defend his son, even when others (like his wife) are critical and disappointed in Despereaux.
* Protecting his family: Lester's decision to defend Despereaux is also about protecting his family. He knows that if he doesn't stand up for his son, Despereaux might be harmed or even killed in the dangerous world of the castle.
* A desire for Despereaux to be happy: Lester, though he often expresses his disdain for his son's "foolish" dreams, deep down wants him to be happy. He believes that by allowing Despereaux to pursue his own path, even if it's a dangerous one, he might find true fulfillment.
* A hope for redemption: Lester, in his own way, is trying to make up for his own past mistakes. He knows he didn't always protect his family in the way he should have, and he sees Despereaux as a chance to redeem himself.
Lester's defense of Despereaux is a moving example of the power of unconditional love, even in the face of adversity. He embodies the strength of a parent who, despite his own fears and anxieties, stands by his child, even when it's difficult.