“Anything else you’re interested in is not going to happen if you can’t breathe the air or drink the water. Don’t sit this one out. Do something.”
Carl Sagen
Who was Carl Sagen?
Carl Edward Sagan was an American astronomer, planetary scientist, cosmologist, astrophysicist, astrobiologist, author, and science communicator.
Read more:
https://en.wikipedia.org/wiki/Carl_Sagan
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