Quote by: Carl Sagan

Claims that cannot be tested, assertions immune to disproof are veridically worthless, whatever value the may have in inspiring us or in exciting our sense of wonder.


Share this:  

Author Bio


  • NameCarl Sagan
  • DescriptionAmerican astrophysicist, cosmologist, author and science educator
  • BornNovember 9, 1934
  • DiedDecember 20, 1996
  • CountryUnited States Of America
  • ProfessionCosmologist; Astrophysicist; Novelist; Planetary Scientist; Space Scientist; Popularizer Of Science; Science Fiction Writer; Science Writer
  • Awards; Pulitzer Prize For General Non-Fiction; Humanist Of The Year