# Every thinking person fears nuclear war and every technological nation plans for it by Carl Sagan > "Every thinking person fears nuclear war and every technological nation plans for it." > **— Carl Sagan**, *Cosmos television series / nuclear-war discussion, attribution clue* Verification Status: Unverified — exact wording/source has not yet been independently confirmed against a primary source; source clue: Cosmos television series / nuclear-war discussion, attribution clue.