Modern philosophers are thinkers who have shaped contemporary ideas about knowledge, ethics, and existence. They explore questions about human nature, society, and the universe, often challenging traditional beliefs. Key figures include Jean-Paul Sartre, who emphasized existentialism, and Simone de Beauvoir, known for her work on feminism and ethics. These philosophers often engage with topics like political theory, metaphysics, and epistemology. Their ideas influence various fields, including psychology, sociology, and politics. By examining the complexities of human experience, modern philosophers contribute to ongoing discussions about morality, freedom, and the meaning of life.