From the "Time’s Arrow" episode arc of TNG.
And that’s fucking Star Trek. That’s Star Trek. That’s it right there. There it is. Star Trek. Optimism and Idealism in the face of rampant bullshit. I wanna stick this up JJ’s craw and smack him with fifty DVD’s of Into Darkness. I know, I know, this was TNG. But TOS had the same backbone of idealism.