Unity/Uniformity/Identity/Principles/Millikan: The problem of unity has nothing to do with the problem of identity, but is often confused with it.
Identity: is objective in nature
Uniformity: is more conventional, governed by principles._____________Explanation of symbols: Roman numerals indicate the source, arabic numerals indicate the page number. The corresponding books are indicated on the right hand side. ((s)…): Comment by the sender of the contribution. The note [Author1]Vs[Author2] or [Author]Vs[term] is an addition from the Dictionary of Arguments. If a German edition is specified, the page numbers refer to this edition.
R. G. Millikan
Language, Thought, and Other Biological Categories: New Foundations for Realism Cambridge 1987
"Varieties of Purposive Behavior", in: Anthropomorphism, Anecdotes, and Animals, R. W. Mitchell, N. S. Thomspon and H. L. Miles (Eds.) Albany 1997, pp. 189-1967
Der Geist der Tiere, D Perler/M. Wild, Frankfurt/M. 2005