One of my personal favorite scenes from all of Star Trek lore. Patrick Stewart reprises his role as Captain Sean-Luc Picard with the time and tested crew of the federation starship USS Enterprise. This time they are thrown back in time to stop the near unstoppable perfection seeking cybernetic zombie hoard, the Borg. Captain Picard and the crew must come face to face in hand to hand combat as the Borg, fleeing their destroyed ship have stowed-away on board the Enterprise and slowly taking it over.
The crew race to prevent the Borg from using the ship to stop 21st century humans from making the first faster than light space ship test triggering first contact with advance Alien race who detects it. Picard believes he has a unique perspective on facing the Borg as he himself had once been "assimilated" by the Borg, leaving a psychological scar that has defined his interactions with them ever since. In this particular scene Lily Salone, one of the 21st century Earth engineers working on the first "warp core ship", played by actor Alfre Woodard, talks Picard into simply blowing up the ship otherwise risk loosing the ship and humanity to the Borg.
Picard wrestles with this idea realizing how much his emotional trauma is limiting him from dealing with the Borg rationally. Coming back to the situation with full self-awareness Picard quotes a passage from the book Moby Dick, recounting the death of the doomed vengeance seeking Captain Ahab, a whaling ship captain who was crippled by a rouge man eating monstrous white whale.
Any fans of Patrick Stewart outside of Star Trek get a double treat with this as venerable stage and scene actor Patrick Stewart has on numerous occasions played Captain Ahab on stage and screen to award winning performances.