Categories Carl Sagan intelligence Carl Sagan | intelligence The brain is like a muscle. When it is in use we feel very good. Understanding is joyous. Post author By Beautiful Quotes Post date December 11, 2022 No Comments on Carl Sagan | intelligence The brain is like a muscle. When it is in use we feel very good. Understanding is joyous. Carl Sagan 00 Tags Carl Sagan, intelligence, ← Bill Watterson | intelligence → Roger Ebert | intelligence Leave a Reply Cancel replyYour email address will not be published. Required fields are marked *Comment * Name * Email * Website Save my name, email, and website in this browser for the next time I comment. Δ
