That's sort of like
the uncertainly PRINCIPLE.
The Big Bang Theory Season 4, Episode 20
of Heisenberg's
uncertainty PRINCIPLE,
The Big Bang Theory Season 5, Episode 5
should avoid espousing
the PRINCIPLE
The Big Bang Theory Season 7, Episode 22
The holographic PRINCIPLE suggests...
The Big Bang Theory Season 6, Episode 5
Raj, where do you stand
on the anthropic PRINCIPLE?
The Big Bang Theory Season 6, Episode 1