I'm plagued by an INTERNAL struggle.
The Big Bang Theory Season 8, Episode 6
At best you can say, "Hey, look, my idea
has an INTERNAL logical consistency."
The Big Bang Theory Season 1, Episode 3
Homeostasis refers to a system's ability
to regulate its INTERNAL environment.
The Big Bang Theory Season 6, Episode 2
a record of the INTERNAL process
of their cognition.
Westworld Season 2, Episode 9
It’ll be the INTERNAL medicine doctor,
won’t it? I don’t know.
Money Heist Season 1, Episode 13