Hannibal Lecter: "First principles, Clarice. Simplicity. Read Marcus Aurelius. Of each particular thing ask: what is it in itself? What is its nature? What does he do, this man you seek?"
Clarice Starling: "He kills women..."
Hannibal Lecter: "No. That is incidental. What is the first and principal thing he does? What needs does he serve by killing?"
Clarice Starling: "Anger, um, social acceptance, and, huh, sexual frustrations, sir..."
Hannibal Lecter: "No! He covets. That is his nature. And how do we begin to covet, Clarice? Do we seek out things to covet? Make an effort to answer now."
Clarice Starling: "No. We just..."
Hannibal Lecter: "No. We begin by coveting what we see every day. Don't you feel eyes moving over your body, Clarice? And don't your eyes seek out the things you want?"