J. Abel Upegui Castillo, procede de una familia en la que se conjugan rancias tradiciones antioqueï¿½as y bogotanas. Desde sus albores sintiï¿½ apego por la poesï¿½a, y en la juventud se encendiï¿½ su entusiasmo por la declamaciï¿½n de autores consagrados de su patria y del continente americano, entre ellos Josï¿½ Asunciï¿½n Silva, Porfirio Barba-Jacob y Jorge Robledo Ortiz; Pablo Neruda, Cï¿½sar Vallejo, Francisco Luis Bernï¿½rdez y Amado Nervo; y de otros no menos grandes allende el mar, de gloria superlativa, como los hermanos Manuel y Antonio Machado, Federico Garcï¿½a Lorca y Rafael de Leï¿½n, entre otros bardos espaï¿½oles de imperecedero recuerdo.
Born in Berlin, Germany, Gerald Holton received his Ph.D. in physics from Harvard University in 1946. Shortly afterward, he launched into what has become a major part of his career---directing a well-known program that originally was developed to teach physical science to liberal arts majors at Harvard. This program, called Harvard Project Physics, became the model for an ambitious program to teach physics in a similar historical manner in colleges and high schools throughout the United States. Later, Holton used this model in a somewhat different manner, establishing a program for the public understanding of science that eventually grew into a journal, Science, Technology and Human Values. For many years, Holton was a coeditor of Daedalus, the journal of the American Academy of Arts and Sciences. He has also gained recognition as a biographer of Albert Einstein, and he has worked tirelessly to demonstrate that science requires as much creative imagination as do the arts and humanities.