An introduction of the concept of "Universal Priors", after a review of the history of reasoning, and its relation to language and philosophy. The author gives a tentative list of his "universal priors", stating that "these are concepts without which there can be no science". As Figure 1 in this paper, there is a full-page drawing of the Domain of Science Model, the same figure which appears as the FRONT COVER of the first edition of A Science of Generic Design, 1990. This paper is dated November 1987, over a year after the first Domain of Science Model, and the figure which is printed with it might be the very first time it is used. It is certainly different from the Domain of Science Model figure used in Warfield's 1986 paper. This paper was not published. However David Houpt and Robert Vay found it and published it in the Warfield Digital Collection, using the original typed manuscript from Box 35 in Warfield Special Collection at Fenwick Library.
