"There is a frozen sea within us. Philosophy is an axe." Philosophy has the capacity to create new and revisionary concepts in areas where empirical research may be more, or less, irrelevant, e.g. free will, or to confirm the appropriateness of old concepts. Topics include some of: the nature of philosophy, the nature of logic, the problem of evil, the existence of God, time, personal identity, the mind-body problem, and freewill and determinism. The emphasis will be on understanding the basic outlines and the main arguments and structures of existing philosophical problems, and on oral in-class argument and writing short philosophy papers, all with some attention to the history of philosophy. The aim of the course is to enable students to do philosophy, rather than just to learn about it.