![...made a greater contribution
to the discredited field of alchemy...
...made a greater contribution
to the discredited field of alchemy...](data:image/png;base64,R0lGODlhAQABAAD/ACwAAAAAAQABAAACADs=)
...made a greater CONTRIBUTION
to the discredited field of alchemy...
The Big Bang Theory Season 3, Episode 7
![...if and when he makes
a worthwhile contribution to science.
...if and when he makes
a worthwhile contribution to science.](data:image/png;base64,R0lGODlhAQABAAD/ACwAAAAAAQABAAACADs=)
...if and when he makes
a worthwhile CONTRIBUTION to science.
The Big Bang Theory Season 6, Episode 9
![...you'll put them in order of the size
of their contribution to their fields.
...you'll put them in order of the size
of their contribution to their fields.](data:image/png;base64,R0lGODlhAQABAAD/ACwAAAAAAQABAAACADs=)
...you'll put them in order of the size
of their CONTRIBUTION to their fields.
The Big Bang Theory Season 3, Episode 7
![Please. The only way she could make
a contribution to science...
Please. The only way she could make
a contribution to science...](data:image/png;base64,R0lGODlhAQABAAD/ACwAAAAAAQABAAACADs=)
Please. The only way she could make
a CONTRIBUTION to science...
The Big Bang Theory Season 2, Episode 2
![...I'm the only one making any real-world
contribution to science and technology.
...I'm the only one making any real-world
contribution to science and technology.](data:image/png;base64,R0lGODlhAQABAAD/ACwAAAAAAQABAAACADs=)
...I'm the only one making any real-world
CONTRIBUTION to science and technology.
The Big Bang Theory Season 2, Episode 22