“Spain is tragic, because the Spaniard lives between the fear of nothing and the desire for eternity.”
— Miguel de Unamuno[commonly attributed] Summary of Unamuno's reflections on Spanish character in essays such as En torno al casticismo; not a verified line

Commentary

This summary links the tragic sense of individual life to the character of Spain, a theme that runs through Unamuno's essays on the national spirit. He argued that the Spanish temperament was marked by an intense concern with personal immortality and by the anguish of its absence, and he read this concern as the source of both the country's religious passion and its political failures. Paul Ilie's study (1967) situates these reflections within the Generation of 1898 and its preoccupation with the decline of Spain. Colin Smith (1968) shows that the essays on Spanish identity, including En torno al casticismo, were shaped by Unamuno's engagement with European philosophy. The sentence paraphrases these arguments and should be labelled as a commonly cited formulation.