That phrase was simply about Spock sacrificing himself so that the ship might survive as he exposed himself to radiation. While it can be twisted to socialism and marxist origin, in the proper context it was simply a few words of comfort to a distraught Kirk as he had saved the ship and was dying. The parting final words of Spock dying as one who allowed many others to not perish in a disaster. While that is exactly the impression they intended to make in the filming of that scene, I have little doubt that they were also inserting a little bit of under-the-radar socialist theory into their entertainment. The Russian Communists were also very big about promoting the struggles and sacrifices of their heroes.
I seem to recall that someone wrote an article saying that the writers did indeed intend that line as a subtle variation on "From each according to his ability, to each according to his need."
Leonard Nimoy also played a Martian zombie in the serial”Zombies from the Stratosphere”. He was a turncoat zombie who decided he didn’t want to kill humans!! I think the serial is on YouTube. Anyway, you can see he had his Vulcan eyebrows!!!!
Live long and prosper!!!
Oh, yes—his one-man show where he played Theo van Gogh was excellent..very talented man!!