"What you had to do, what you always do. Turned death into a fighting chance to live".
You're quoting one of the revival movies, which were nothing if not mannered and stuffy by the standard of their times.
Just for starts, try:
“It's a mystery. And I don't like mysteries. They give me a bellyache, and I got a beauty right now.”
It's an absolute fact that the human characters on TOS spoke as colloquially as other television characters of their day, just as doctors, cops and cowboys did. TV itself happened to be more formal then and a little less relatable. It was only after Trek became a Thing that flourished through self-mimicry that the producers confused it with something Shakespearean.
One of the staff writers on TNG called it "The stilted Star Trek language." They hated it.