Now there is one outstanding important fact regarding spaceship earth, and that is that no instruction book came with it.
It is essential that anyone reading this book know at the outset that the author is apolitical. I was convinced in 1927 that humanity's most fundamental survival problems could never be solved by politics.
Thou mayest as well expect to grow stronger by always eating as wiser by always reading. Too much overcharges Nature, and turns more into disease than nourishment. 'Tis thought and digestion which makes books serviceable, and give health and vigor to the mind.
The most important thing about Spaceship Earth - an instruction book didn't come with it.
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