“- Albert Einstein: That's it! That's the theory of relativity! Light travels to us from the hands of the clock, to tell us the time. But, if we were to travel away from the clock at the speed of light...
- Marie Curie: The hands of the clock would appear to have stopped!
- Albert Einstein: Time would stand still! This moment would last forever.”
Yahoo Serious - Albert Einstein
Odile Le Clezio - Marie Curie

“- Mr. Taggart: We've no guarantee that these theories of yours are workable.
- Thomas A. Edison: Well, most electricity is theory yet.”
Gene Lockhart - Mr. Taggart
Spencer Tracy - Thomas A. Edison

“He had a theory that if you should find one perfect thing, or place or person, you should stick to it.”

Joan Fontaine - Mrs. de Winter

“As much as I enjoyed your wild theories the truth is far less complex.”

Timothy Dalton - Simon Skinner

Although he was considered insane by his peers, Bernoulli's theory states that the air flowing over a bird's wing is at a lower pressure than the air flowing under the wing. That's called "lift". Of course, it's only a theory, it's never been tested...

Kevin Kline - Artemus Gordon