
Remember the grant proposal I submitted
to the National Science Foundation...
The Big Bang Theory Season 2, Episode 23

Loyalty is the FOUNDATION
on which the Night's Watch is built.
Game of Thrones Season 6, Episode 1

The National Science Foundation
The Big Bang Theory Season 7, Episode 6

Hang on, let's talk about it. This is a
National Science Foundation expedition.
The Big Bang Theory Season 2, Episode 23

...but the FOUNDATION of gift-giving
is reciprocity.
The Big Bang Theory Season 2, Episode 11