El sí de las niñas

*El sí de las niñas* is a Spanish play by Leandro Fernández de Moratín, written in 1806. It explores themes of love, social class, and arranged marriage. The story centers on a young woman, Doña Francisca, who is pressured into marrying her older, wealthy guardian, Don Carlos. However, she secretly loves her true suitor, her cousin Don Diego. The play advocates for rationality and individual choice, emphasizing that genuine happiness comes from love and personal freedom rather than societal expectations. It is considered a significant work of Spanish neoclassical theater, promoting Enlightenment ideas of reason and morals.