The ontology of Ortega y Gasset crystallized slowly between the years of 1934 and 1945. These were years of exile, years of war and financial insecurity that forced him to move from country to country. His health too was sorely tested on various occasions during this period. Remoteness from intellectual resources, familiar libraries, co-laborers, were doubtlessly disturbing obstacles to his progress. Ortega was fifty in 1933; yet for all these hindrances the next decade of his life was his most ambitiously productive.