How we cite our quotes: All quotations are from Star Trek: The Motion Picture.
Quote #4
SPOCK: And yet with all this pure logic, V'Ger is barren, cold—no mystery, no beauty. I should have known.
Interestingly, Spock feels repulsed by "pure logic" when he feels it reflected back at him by V'Ger. This represents a big shift for his character, as he is embracing his human emotionality more than ever before.
Quote #5
SPOCK: This simple feeling is beyond V'Ger's comprehension. No meaning, no hope, and—Jim—no answers. It's asking questions. "Is this all I am? Is there nothing more?"
Spock is shaken to the core by his encounter with V'Ger. There he sees nothing but logic, which should be comforting to him as a Vulcan, but ends up leaving him cold and scared. Logic is great and all, but it has no purpose without those intangible emotions that go along with it—those silly things that make life worth living.
Quote #6
KIRK: The carbon-units are not an infestation. They are a natural function of the Creator's planet. They are living things.
ILIA: They are not true lifeforms. Only the Creator and other similar lifeforms are true.
Here, Ilia reverses our preconceptions by arguing that machines are the only "true" life in the universe, and that biological creatures are the artificial ones. It might sound odd, but it makes sense that a self-aware machine would reach that conclusion.