“ Life is a hypothesis of last resort. You invoke it only when there's no other way to explain what you see. ”
Carl Sagan, Pale Blue Dot (1994). copy citation
| Author | Carl Sagan |
|---|---|
| Source | Pale Blue Dot |
| Topic | life hypothesis |
| Date | 1994 |
| Language | English |
| Reference | |
| Note | |
| Weblink |
