“ There are worlds on which life has never arisen. There are worlds that have been charred and ruined by cosmic catastrophes. We are fortunate: we are alive; we are powerful; the welfare of our civilization and our species is in our hands. ”
Carl Sagan, Cosmos (1980). copy citation
Author | Carl Sagan |
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Source | Cosmos |
Topic | civilization welfare |
Date | 1980 |
Language | English |
Reference | |
Note | |
Weblink |