The document provides an overview of the Philippine constitution, including its origins, nature, purposes and key principles. It defines a constitution as the fundamental law that establishes the framework of government. The 1987 Philippine constitution is described as a conventional, written and rigid document. Key features of the 1935, 1973 and 1987 Philippine constitutions are outlined. The preamble expresses the goals of justice, democracy and human rights. Article 1 covers the national territory and Articles 2 outlines principles like sovereignty, civil supremacy over the military, and protection of life, family and youth.