Prove Quotes - page 2
We must not forget that when radium was discovered no one knew that it would prove useful in hospitals. The work was one of pure science. And this is a proof that scientific work must not be considered from the point of view of the direct usefulness of it. It must be done for itself, for the beauty of science, and then there is always the chance that a scientific discovery may become like the radium a benefit for humanity.
Marie Curie
I bought a doughnut and they gave me a receipt for the doughnut; I don't need a receipt for the doughnut. I'll just give you the money, and you give me the doughnut, end of transaction. We don't need to bring ink and paper into this. I just can't imagine a scenario where I would have to prove that I bought a doughnut. Some skeptical friend: "Don't even act like I didn't get that doughnut! I got the documentation right here...oh, wait it's at home...in the file...under 'D', for doughnut."
Mitch Hedberg