"[As a Mormon missionary in 1937] One of the activities I mentioned in a letter to Kathryn was 'library work,' by which I meant 'putting Books of Mormon in libraries and trying to remove anti-Mormon literature.' It is apparent that I had not acquired from my early training the belief that the best test of truth is in the marketplace of ideas (an idea forcefully expressed in those terms by one of my later heroes, Oliver Wendell Holmes, Jr., and by John Stuart Mill before him). Indeed, my father had inadvertently given me a lesson in the contrary position that I would later reject. In Montreal we visited a branch library together. While I prepared a sermon, he thumbed through current magazines and came across an article uncomplimentary to Mormonism. He tore it out. HIs conduct startled me, at the time mainly because he was destroying someone else's property. Not long after my mission was over, I would regard such an attempt at 'censorship,' coupled with damage to another's property, as seriously wrong. I do not know whether with my father's unquestioning faith in his Church's doctrine's he ever overcame that inclination to suppress contrary views when he could. It was a flaw--one I would later regard as serious--in the otherwise sterling character of a great and good man."