“eat any good books lately?”

“I hate temporal mechanics”

And

“He was more than a hero. He was a union man!”

“You know, I’m really easy to get along with - most of the time - but I don’t like bullies, and I don’t like threats - and I don’t like you”

Edit: A close second is “Survival is insufficient”

Tom : “What do you think? Boy or a girl?”

Seven : “It’s a holographic projection.”

If we’re just talking voyager, it’s “Delete the wife”. If we’re talking all of trek, it might be “Hey Worf, Eat any good books lately?”

“Computer, deactivate iguana.”

Probably the grocery store line, but I’m a chatty fellow.

“Gentlemen, I suggest you beam me aboard.”

-TOS: The Doomsday Machine

Runner-up quote: “This is highly improbable.”

-TNG: Cause and Effect