An abnormal reaction to an abnormal situation is normal behavior.

I used to be afraid of losing my memory. What I wouldn't give to forget a thing or two now.
Memory gives moments immortality, but forgetfulness promotes a healthy mind. It's good to forget.

Hannibal: With every choice lies the possibility of regret. However, if I choose not to do something, it's usually for a good reason.
Will: I'm... riddled with regrets.
Hannibal: A life without regret would be no life at all.

No one can be fully aware of another human being unless we love them. By that love we see potential in our beloved. Through that love, we allow our beloved to see their potential. Expressing that love, our beloved's potential comes true.

Will: I think I hate him.
Hannibal: I envy you, your hate. It makes it easier when you know how to feel.
Will: What... Makes what easier?
Hannibal: Killing.

Will: What do you think about when you think about killing?
Hannibal: I think about God.
Will: Good and evil?
Hannibal: Good and evil has nothing to do with God.

Will: I discovered a truth about myself when I tried to have you killed.
Hannibal: That doing bad things to bad people makes you feel good?
Will: Yes.

Many troublesome behaviors strike when you are uncertain of yourself.

Hannibal: Mason is discourteous. And discourtesy is unspeakably ugly to me.
Will: Are you thinking about eating him?
Hannibal: Whenever feasible, one should always try to eat the rude.

"No beast is more savage than man when possessed with power answerable to his rage."

Margot: They think I'm weird.
Hannibal: I'm much weirder than you will ever be, Margot. It's fine to be weird.