![Leonard, you are my roommate,
my source of transportation...
Leonard, you are my roommate,
my source of transportation...](data:image/png;base64,R0lGODlhAQABAAD/ACwAAAAAAQABAAACADs=)
Leonard, you are my roommate,
my SOURCE of transportation...
The Big Bang Theory Season 2, Episode 13
![I know that money can
be a source of friction
I know that money can
be a source of friction](data:image/png;base64,R0lGODlhAQABAAD/ACwAAAAAAQABAAACADs=)
I know that money can
be a SOURCE of friction
The Big Bang Theory Season 12, Episode 3
![But not so deep as to introduce
a new source of friction. But not so deep as to introduce
a new source of friction.](data:image/png;base64,R0lGODlhAQABAAD/ACwAAAAAAQABAAACADs=)
But not so deep as to introduce
a new SOURCE of friction."
The Big Bang Theory Season 2, Episode 5
![So to begin with, what are we saying
is the source of this money?
So to begin with, what are we saying
is the source of this money?](data:image/png;base64,R0lGODlhAQABAAD/ACwAAAAAAQABAAACADs=)
So to begin with, what are we saying
is the SOURCE of this money?
Breaking Bad Season 3, Episode 11
![Not only do I have a deep-cycle
marine battery power source
Not only do I have a deep-cycle
marine battery power source](data:image/png;base64,R0lGODlhAQABAAD/ACwAAAAAAQABAAACADs=)
Not only do I have a deep-cycle
marine battery power SOURCE
The Big Bang Theory Season 5, Episode 15