 During his two decades at Princeton, Hempel’s approach dominated the philosophy of science. His major articles during this interval included “The Theoretician’s Dilemma” (1958), “Inductive Inconsistencies” (1960), “Rational Action” (1961), and “Deductive-Nomological vs. Statistical Explanation” and “Explanation in Science and in History” and (both in 1962). A classic collection of his studies, Aspects of Scientific Explanation (1965c), became a scholar’s bible for generations of graduate students. His introductory text, Philosophy of Natural Science (1966a), would be translated into ten languages. Other articles he published thereafter included “Recent Problems of Induction” (1966b) and “Maximal Specificity and Lawlikeness in Probabilistic Explanation” (1968) as well as a series of studies that included “On the ‘Standard Conception’ of Scientific Theories” (1970).