Abdus Salam's major field of interest in the 1950s and 1960s was the relationship between two of the four basic forces governing nature then known to scientists: the electromagnetic and weak forces. In 1968, Salam published a theory showing how these two forces may be considered as separate and distinct manifestations of a single more fundamental force, the electroweak force. Experiments conducted at the European Center for Nuclear Research (CERN) in 1973 provided the empirical evidence needed to substantiate Salam's theory. For this work, Salam shared the 1979 Nobel Prize in physics with physicists Sheldon Glashow and Steven Weinberg, who had each independently developed similar theories between 1960 and 1967. Salam's long-time concern for the status of science in Third World nations prompted him in 1964 to push for the establishment of the International Center for Theoretical Physics (ICTP) in Trieste, Italy. The Center provides the kind of instruction for Third World physicists that...