You can think about Heisenberg's
uncertainty PRINCIPLE...
The Big Bang Theory Season 4, Episode 20
The holographic PRINCIPLE suggests...
The Big Bang Theory Season 6, Episode 5
...the PRINCIPLE that a physical system exists
partially in all its possible states at once.
The Big Bang Theory Season 6, Episode 19
of Heisenberg's
uncertainty PRINCIPLE,
The Big Bang Theory Season 5, Episode 5
Leonard, where do you stand
on the anthropic PRINCIPLE?
The Big Bang Theory Season 6, Episode 1