Riker: "How well did you know Spock?"
Picard: "I only met him once. What I know of him comes from history books.
And, of course, a mind meld with his father."
Riker: "Well that must cover a lot of ground."
Picard: "Not as much as you'd imagine. Sarek and Spock. Well, sometimes,
fathers and sons--"
Riker: "Mmm, understood."
-- "Unification I", Stardate 45235.4