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1. Who wrote the introduction?

Carl Sagan.

2. Most people believe that since the universe had a beginning it must have a what?

An end.

3. Philosophers try to understand the universe using what method?

Disciplined logic.

4. Scientists start their understanding of the universe with what?

Observations and mathematics.

5. Stephen Hawking has what disease?

Lou Gehrig's disease.

6. In what year did Stephen Hawking enter the Royal Society of London?

1974.

7. The writer of the Introduction hints that time might be able to move in what direction?

Backwards.

8. Unlike children, scientists and philosophers, most adults use what to explain away the fundamental questions of the universe?

Religion.

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