The material in this chapter is adapted from previously published content:
Payne, R.W. (2015). An Introduction to Philosophy. BCcampus. Section 1.5-1.10, 2.11, 3.55. https://open.umn.edu/opentextbooks/textbooks/598 CC BY NC.
Ondich, J. (2018). Words of Wisdom: Intro to Philosophy. Minnesota Libraries Publishing Project. Sections 1.30-35, 41.409. https://mlpp.pressbooks.pub/introphil/ CC BY NC SA.