I am writing a book! If you want to know when it is ready (and maybe win a free copy), submit your email on my website: https://www.jeffreykaplan.org/ I won’t spam you or share your email address with anyone. For more philosophy videos: https://www.youtube.com/channel/UC_hukbByJP7OZ3Xm2tszacQ This is a video intended for college students considering taking a class in philosophy, but who are not sure exactly what philosophy is. This is also a video for parents or other relatives or friends of college students who have decided to major in philosophy, but who are not sure exactly what philosophy is. In this lecture, I argue that philosophy is the attempt to rigorously answer questions that cannot be answered either (a) by observation or experimentation or (b) by calculation from stipulated definitions and axioms.