Dexter Kozen Professions : Computer Scientist Born : December 20, 1951 Browse All Authors Famous Quotes by Dexter Kozen Shadows of a thousand years rise again unseen, Voices whisper in the trees, "Tonight is Halloween!" Dexter Kozen halloween voice years Similar Authors Bill Joy computer-scientist Butler Lampson computer-scientist Brian Reid computer-scientist Brian Kernighan computer-scientist Andrew S. Tanenbaum computer-scientist Andy Hertzfeld computer-scientist All Authors