Philosophy of education involves the union of philosophy and education. It examines the goals and methods of education through philosophical analysis. There are many philosophical perspectives on education such as essentialism, progressivism, pragmatism, and existentialism. These perspectives have different views on the nature and purpose of education and how students should be taught. The 1987 Philippine Constitution outlines goals for education such as inculcating patriotism, fostering love of humanity, and teaching citizenship.