This document summarizes the nature and development of Philippine nationalism. It discusses several key factors that contributed to the rise of Philippine nationalism, including the influx of liberal ideas from abroad, the Spanish Revolution of 1868, the opening of the Suez Canal in 1869, and the martyrdom of three Filipino priests in 1872. It also examines how customs, traditions, and religion impacted nationalism. The document outlines Filipino traits and values like hospitality, gratitude, cooperativeness, and bravery. It discusses the barriers to developing nationalism and Rizal's vision of an independent Philippines.