Give the different branches of science and their meaning?

Mathematics:

It is as if mathematics were the vegetables of the academic dinner: Everyone knows that they are good for you, but no one forces you to eat them.
-- Timothy Norfolk

I think of lotteries as a tax on the mathematically challenged.
-- Roger Jones

As long as algebra is taught in school, there will be prayer in school.
-- Cokie Roberts

Physics professor has been doing an experiment, and has worked out an empirical equation that seems to explain his data. He asks the math professor to look at it.
A week later, the math professor says the equation is invalid. By then, the physics professor has used his equation to predict the results of further experiments, and he is getting excellent results, so he asks the math professor to look again.
Another week goes by, and they meet once more. The math professor tells the physics professor the equation does work, "but only in the trivial case where the numbers are real."
-- Anonymous

Chemistry:

Organic chemistry is the chemistry of carbon compounds. Biochemistry is the study of carbon compounds that crawl.
-- Mike Adams

In 1929 London published a very approximate solution of the Schroedinger equation for a system of chemical interest: H₃. To the extent that chemistry can be regarded as existing separately from physics, this was a landmark in the history of chemistry, comparable in importance to the landmark in the history of physics marked by the appearance of the Heitler-London equation for H₂. The expression for H₃, was, of necessity, even less accurate than that for H₂, but chemists, like the habitual poor, were accustomed to this sort of misfortune. Together with the physicists they enjoyed the sensation of living in a renaissance. The physicists still could not calculate a great deal that was of interest to them, and the chemists could calculate less, but both could now dream.
-- John Polanyi, Account of Chemical Research 5 (1972) 161

Biology:

If we don't play God, who will?
-- James Watson

A biophysicist talks physics to the biologists and biology to the physicists, but then he meets another biophysicist, they just discuss women.
-- Anonymous

I think computer viruses should count as life. I think it says something about human nature that the only form of life we have created so far is purely destructive. We've created life in our own image.
-- Stephen Hawking

Physics:

Physics is like sex: sure, it may give some practical results, but that's not why we do it.
-- Richard Feynman

All theoretical chemistry is really physics; and all theoretical chemists know it.
-- Richard Feynman

All science is either physics or stamp collecting.
-- Ernest Rutherford

A biophysicist talks physics to the biologists and biology to the physicists, but then he meets another biophysicist, they just discuss women.
-- Anonymous

Miscellaneous Science Related Quotes:

Common sense is what tells us that the earth is flat.
-- Carl Sagan