Based on the PREMISE that
"lumen" sounds like "lemon"?
The Big Bang Theory Season 12, Episode 14
Well, if we accept your PREMISE and also
accept the highly improbable assumption...
The Big Bang Theory Season 1, Episode 17
Let's begin with the PREMISE that everything
you've done up to this point is wrong.
The Big Bang Theory Season 2, Episode 18
I accept your PREMISE.
Now, please let's go.
The Big Bang Theory Season 1, Episode 2
I accept your PREMISE,
I reject your conclusion.
The Big Bang Theory Season 1, Episode 16