Insufficient Data Is Not Sufficient (The Immunity Syndrome)

KIRK: Spock, give me an update on the dark area ahead. SPOCK: No analysis due to insufficient information. KIRK: No speculation, no information, nothing. I've asked you three times for information on that, and you've been unable to supply it. Insufficient data is not sufficient, Mister Spock. You're the science officer. You're supposed to have sufficient data all the time. SPOCK: I am well aware of that, Captain.