Philosophy is concerned with foundational questions about reality, knowledge, consciousness, language and logic as well justice, values and moral action. Some of these questions and problems have been pursued for thousands of years, others are very recent.

Are there objectively correct answers to moral questions? Which ethical problems does the latest biomedical research give rise to? What can we know about the mental states of others? If there is no sharp boundary between being tall and not being tall, will that lead to contradictions? If so, how do we avoid these? These are examples of a few of the many questions that are pursued in research and education at the Department of Philosophy.

Theoretical philosophy has a significant competence in the philosophy of language and mind as well as in logic and philosophy of science. In practical philosophy the department is particularly strong in moral philosophy, including metaethics, and in applied ethics - particularly medical ethics.

The department has an extensive international connections and exchanges. Research is conducted both in the form of small and large projects, both nationally and internationally, often in collaboration with researchers from other disciplines. In philosophy of language, for example, there is collaboration with linguists, psychologists and computer scientists. In political science there is collaboration with political scientists and economics. Research in medical ethics is conducted under purview of the Centre for Healthcare Ethics (CHE), which is a crossdisciplinary collaboration between Stockholm University, The Karolinska Institute and The Royal Technical University.