Carl Sagan Quote: No.17
- 17
The brain is like a muscle. When it is in use we feel very good. Understanding is joyous. Carl Sagan | Refcard PDF ↑
Tool box
- Name:
- Carl Sagan (random)
- Books & Videos:
- Carl Sagan Books & Videos
- Type:
- Scientist
- Nationality:
- American
- Birth Date / Year:
- November 9, 1934
- Death Date / Year:
- December 20, 1996
