McCoy: The odds are not good.

Spock: No. I would say approximately four hundred…

McCoy: Don’t quote odds and don’t give me any more dispassionate logic, Mister Spock. Just keep looking for them. 

Spock: I would welcome a suggestion, Doctor, even an emotional one, as to where to look. 

McCoy: First time you’ve ever asked me for anything, and it has to be an occasion like this.

Star Trek — Season 2: Episode 17 — “The Gamesters of Triskelion”