Add to ORKGIn this Article, Professor Charles Collier traces out a general theory of precedential authority through historical sources. The Article focuses on three particularly influential views of precedent: Wambaugh\u27s concept of dictum, Oliphant\u27s concept of stare decisis, and Goodhart\u27s concept of ratio decidendi. These views illustrate an underlying tension between two distinct doctrines of precedential authority. The first doctrine, derived from humanistic thought, restricts-legal authority as narrowly as possible to the express terms of an original text. The second doctrine draws on the broad, generalizing tendencies of the empirical sciences and their corresponding conceptions of scientific authority. The two doctrines coexist in a st...