The four most common chemically active elements in the universe—hydrogen, oxygen, carbon, and nitrogen—are the four most common elements of life on Earth. We are not simply in the universe. The universe is in us.
If you look at a tree and think of it as a design assignment, it would be like asking you to make something that makes oxygen, sequesters carbon, fixes nitrogen, distills water, provides habitat for hundreds of species, accrues solar energy's fuel, makes complex sugars and food, changes colors with the seasons, creates microclimates, and self-replicates.william mcdonough
I figure I've done what I could do, more or less, and now I'm going back to being a chemical; all we are is a lot of talking nitrogen, you know...Arthur Miller
In the opinion of gemologists , the yellow Diamond is coloured by nitrogen impurity, which according to Scientists was gifted to our solar system by the incarnation of a once massive Star over ten times the size of our Sun more than a few billion years ago.
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