
In PRINCIPLE, you have a point.
The Big Bang Theory Season 1, Episode 15

Leonard, where do you stand
on the anthropic PRINCIPLE?
The Big Bang Theory Season 6, Episode 1

The holographic PRINCIPLE suggests...
The Big Bang Theory Season 6, Episode 5

of Heisenberg's
uncertainty PRINCIPLE,
The Big Bang Theory Season 5, Episode 5

I know what the anthropic PRINCIPLE is.
The Big Bang Theory Season 6, Episode 1