The Naval Academy canceled a speech by author and podcaster Ryan Holiday after he declined a request not to reference 381 books and literary works removed from its library as part of a review of diversity, equity and inclusion materials, according to an opinion piece he authored for The New York Times. Holiday, who has hosted a series of lectures on the virtues of Stoicism to midshipmen for the past four years, was scheduled to speak to the sophomore class on the theme of wisdom on April 14.