Carl Sagan famous quote about brain, feel, joyous, like, muscle

Famous Quotes by american scientist Carl Sagan


Carl Sagan famous quote

“The brain is like a muscle. When it is in use we feel very good. Understanding is joyous.”


Find the best famous citations, references and quotes from Carl Sagan (november-9 – december-20), american scientist writing about brain, feel, joyous, like, muscle, understanding, use, very.

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