
The basic PRINCIPLE is, I lend you money,
Game of Thrones Season 3, Episode 3

You can think about Heisenberg's
uncertainty PRINCIPLE...
The Big Bang Theory Season 4, Episode 20

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

Point is, Sheldon, the legal PRINCIPLE...
The Big Bang Theory Season 4, Episode 21

Now, the mathematical PRINCIPLE
known as the Kelly Criterion,
Breaking Bad Season 4, Episode 4