"John Webster said, 'Death hath 1,000 doors to let out life.' Now let's see which one our victim took."
"As Lord Byron once said: 'In a desert, a fountain is springing.' " (Colleague: "Well, this one sprung a dead woman.")
"Freud said the only unusual sexual behavior is to have none at all, and after that it's just a question of opportunity and preference."
Upon examining a severed head, quoting Washington Irving: "Ichabod was horror-struck in perceiving that he was headless."
As the CSI team is being split up: "Heraclitus once said, 'It is in changing that we find purpose.' "