 Sylvia Nasar is best known for her biography of John Forbes Nash, "A Beautiful Mind".David Gruber is a PhD recipient and graduate of Columbia University Graduate School of Journalism, who also wrote (with Vincent Pieribone) "Aglow in the Dark", published by Harvard University Press.The article begins on the evening of June 20, 2006, with a description of Yau lecturing on a paper by his students, Huai-Dong Cao and Xi-Ping Zhu, in Beijing, on the occasion of Strings 2006, an international conference on string theory.