Philosophy provides rigorous arguments for and against various ideas, and assumptions behind those ideas. These ideas usually aren't empirical, but they are ide

Philosophy provides rigorous arguments for and against various ideas, and assumptions behind those ideas. These ideas usually aren't empirical, but they are ideas many people have or questions people ask. Ethics, aesthetics, the nature of knowledge, truth, what exists, how to live, etc. People who don't take philosophy very seriously still engage in those topics. They just ignore that the topics have a history of being discussed seriously and often put forth their own unexamined assumptions. Scientists aren't immune to this.