This thesis is based on a study of the basic concepts of Concha Espina de Serna as revealed through the outstanding characters in ten of her novels and five volumes of short stories: Despertar para morir(1910), Agua de nieve (1911), La esfinge maragata(1914), La rosa de los vientos (1916), Ruecas de marfil(1917), El metal de los muertos (1920), Dulce Nombre(1921), El cáliz rojo(1923), Tierras del Aquilón (1924), El príncipe del cantar(1929?), Altar mayor (1926), Llama de cera(1927), La virgen prudente(1929), Candelabro(1933), and. La floor de ayer(1934).

This thesis illustrated Gregorio Martinez Sierra's social philosophy: motherhood, marital relationships, relationships between parents and children, and the social even of spain.