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"Nitrogen is like a cold-blooded, lethargic person--it combines with other substances very reluctantly and with but little energy. Oxygen is just its opposite in this respect: it gives itself freely; it is "Hail, fellow; well met!" with most substances, and it enters into co-partnership with them on such a large scale that it forms nearly one half of the material of the earth's crust."

Writer: John Burroughs

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Date: Dec 16 2015 5:02 PM