That's sort of like
the uncertainly PRINCIPLE.
The Big Bang Theory Season 4, Episode 20
You can think about Heisenberg's
uncertainty PRINCIPLE...
The Big Bang Theory Season 4, Episode 20
...and I avoid contact with other people
on general PRINCIPLE.
The Big Bang Theory Season 3, Episode 15
Point is, Sheldon, the legal PRINCIPLE...
The Big Bang Theory Season 4, Episode 21
...most accurate visualization
of a scientific PRINCIPLE.
The Big Bang Theory Season 1, Episode 6