Spock: As a matter of cosmic history, it has always been easier to destroy than to create.
McCoy: Not anymore! Now we can do both at the same time! According to myth, the Earth was created in six days. Now, watch out! Here comes Genesis, we'll do it for you in six minutes.
Context: Spock and McCoy argue over Genesis, a device that can remake a whole planet, and what it would do to a world that already has life.
He tasks me. He tasks me, and I shall have him. I'll chase him round the moons of Nibia and round the Antares maelstrom and round Perdition's flames before I give him up!
Kirk: A no-win situation is a possibility every commander may face. Has that never occurred to you? Saavik: No sir. It has not. Kirk: How we deal with death is at least as important as how we deal…
I don't believe in a no-win scenario.
Ah, Kirk, my old friend. Do you know the Klingon proverb that tells us revenge is a dish that is best served cold? It is very cold in space.
Spock: In any case, were I to invoke logic, logic clearly dictates that the needs of the many outweigh the needs of the few. Kirk: Or the one.
If I may be so bold, it was a mistake for you to accept promotion. Commanding a starship is your first, best destiny. Anything else is a waste of material.