In this interview, K. J. Laidler recalls his childhood, early education, and undergraduate days at Oxford University. He then speaks about his colleagues and teachers at Princeton University where he did graduate work. A consideration of the inception and development of the transition-state theory follows. Laidler then appraises the research that he did both with Steacie in Canada an independently at the Catholic University of America. He also comments upon the nitric oxide research of Hinshelwood and on his own recent work at the University of Ottawa. Finally, Laidler recollects the personal characteristics of several eminent chemists, among them Cyril Hinshelwood, Henry Eyring, and Hugh Stott Taylor.