Science is not the affirmation of a set of beliefs but a process of inquiry aimed at building a testable body of knowledge constantly open to rejection or confirmation. In science, knowledge is fluid and certainty fleeting. That is at the heart of its limitations. It is also its greatest strength.

Why People Believe Weird Things: Pseudoscience, Superstition, and Other Confusions of Our Time (ed. Holt Paperbacks, 2002) - ISBN: 9781429996761