“ If our long-term survival is at stake, we have a basic responsibility to our species venture to other worlds. ”
Carl Sagan, Pale Blue Dot (1994). copy citation
| Author | Carl Sagan |
|---|---|
| Source | Pale Blue Dot |
| Topic | survival responsibility |
| Date | 1994 |
| Language | English |
| Reference | |
| Note | |
| Weblink |
