
Um, Isaac Newton, Madame Curie
and Niels Bohr.
The Big Bang Theory Season 3, Episode 7

Uh... We know that Newton
was a really smart cookie.
The Big Bang Theory Season 3, Episode 10

Now, remember, Newton realized
that Aristotle was wrong...
The Big Bang Theory Season 3, Episode 10

Shall we switch topics
to Isaac Newton v. Gottfried Leibniz?
The Big Bang Theory Season 3, Episode 11

Then after someone said Newton,
I was going to tell them they're wrong.
The Big Bang Theory Season 8, Episode 2