Spock : "Deck two. It is regrettable that you were made an unwilling passenger. It was not intentional. All the Federation wanted was the cloaking device."TOS : The Enterprise Incident
Romulan Commander : "The Federation. And what did you want?"
Spock : "It was my only interest when I boarded your vessel."
Romulan Commander : "And that's exactly all you came away with."
Spock : "You underestimate yourself, Commander."