![Sorry. I didn't get my PhD
in quitting.
Sorry. I didn't get my PhD
in quitting.](data:image/png;base64,R0lGODlhAQABAAD/ACwAAAAAAQABAAACADs=)
Sorry. I didn't get my PhD
in quitting.
The Big Bang Theory Season 11, Episode 15
![](data:image/png;base64,R0lGODlhAQABAAD/ACwAAAAAAQABAAACADs=)
"Why Sheldon Cooper, PhD...
The Big Bang Theory Season 3, Episode 15
![I have a PhD in astrophysics.
I have a PhD in astrophysics.](data:image/png;base64,R0lGODlhAQABAAD/ACwAAAAAAQABAAACADs=)
I have a PhD in astrophysics.
The Big Bang Theory Season 10, Episode 18
![I have a PhD from Cornell University.
I have a PhD from Cornell University.](data:image/png;base64,R0lGODlhAQABAAD/ACwAAAAAAQABAAACADs=)
I have a PhD from Cornell University.
The Big Bang Theory Season 6, Episode 22
![I'm getting my PhD.
I'm getting my PhD.](data:image/png;base64,R0lGODlhAQABAAD/ACwAAAAAAQABAAACADs=)
I'm getting my PhD.
The Big Bang Theory Season 4, Episode 24