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— Peter Medawar"In no sense other than an utterly trivial one is reproduction the inverse of chemical disintegration. It is a misunderstanding of genetics to suppose that reproduction is only 'intended' to make facsimiles, for parasexual processes of genetical exchange are to be found in the simplest living things."
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In a certain sense I made a living for five or six years out of that one star [υ Sagittarii] and it is still a fascinating, not understood, star. It's the first star in which you could clearly demonstrate an enormous difference in chemical composition from the sun. It had almost no hydrogen. It was made largely of helium, and had much too much nitrogen and neon. It's still a mystery in many ways ... But it was the first star ever analysed that had a different composition, and I started that area of spectroscopy in the late thirties.
— Jesse L. Greenstein
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Whole plants differ in their effects from refined drugs (:)...Plants are dilute preparations (of) the active principles...Plants usually go into the body through the mouth and stomach, whereas purified chemicals can be put...by snorting or injecting...directly into...bloodstreams without giving...bodies a chance to process them. Other compounds in drug plants...may modify the active principles, making them safer.
— Andrew Weil
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