"The original Trek was never consistent; to modern eyes, its frequently ham-fisted writing, sexism, sluggish pacing, and lack of continuity between episodes can take some adjustments to accept. But at the show's peak, those flaws could never obscure the raw energy that drove the adventures of Kirk, Spock, and the rest of the crew of the Enterprise, nor the way that energy so often coalesced behind a fundamentally optimistic view of the universe."