I can find in my undergraduate classes, bright students who do not know that the stars rise and set at night, or even that the Sun is a star.
Carl Sagan
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The universe is not required to be in perfect harmony with human ambition.
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I worry that, especially as the Millennium edges nearer, pseudo-science and superstition will seem year by year more tempting, the siren song of unreason more sonorous and attractive.
- Carl Sagan -