Displaying 151 - 151 of 151. Show 5 | 10 | 20 | 40 | 60 results per page.There is no readier way for a man to bring his own worth into question than by endeavoring to detract from the worth of other men.--John Tillotson.
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Philip S. Callahan, Ph.D. Philip S, Callahan holds a Ph.D. in entomology from Kansas State University, and until recently was Professor of Entomology on the graduate faculty of the University of Georgia. |