[to Spock] You? At his side. As if you've always been there and always will. [to Kirk] And you... you belong... in another place. I don't know where or how... I'll figure it out eventually.
[presenting the first findings on the alien creature] Interesting, gentlemen. A one-cell creature resembling, more than anything else, a huge, individual brain cell.
And although it is not physically connected to the other cells, it is, nevertheless, part of the whole creature, guided by the whole, drawing its strength from the whole, which probably accounts for its unusual resistance to our phaser weapons.
[narrating] Captain's log, stardate 3289.8. I am faced with the most difficult decision of my life. Unless we find a way to destroy the creatures without killing their human hosts, my command responsibilities will force me to kill over a million people.
My orders were to give you a thorough physical! In case you hadn't noticed, I have to answer to the same commanding officer that you do! [brief pause] Come on, Spock. Yield to the logic of the situation.
Stonn. She is yours. After a time, you may find that having is not so pleasing a thing, after all, as wanting. It is not logical...but it is often true.
[After realizing that Kirk is not, in fact, dead.] Jim! [Catching himself before he displays further emotion] I am...pleased to see you, Captain; you seem...uninjured.
There's just one thing, Mr. Spock. You can't tell me that when you first saw Jim alive that you weren't on the verge of giving us an emotional scene that would have brought the house down.