This document discusses several philosophies of nursing including naturalism, idealism, pragmatism, and romanticism. Naturalism is defined as the belief that everything arises from natural properties and causes, with Thomas Aquinas cited as an early philosopher of naturalism. Key principles of naturalism for healthcare are discussed. Idealism holds that reality is fundamentally mental or immaterial, with various forms described. Pragmatism is presented as a problem-solving approach focused on practical application and consequences. Romanticism is mentioned but not defined. Examples are given of how these philosophies influence nursing practice, education, research, management, and behavior.