--- title: Walter Sinnott-Armstrong | TIME description: Sinnott-Armstrong is Chauncey Stillman Professor of Practical Ethics in the Department of Philosophy and the Kenan Institute for Ethics at Duke University, co-instructor of the Coursera online course “Think Again” and author of Think Again: How to Reason and Argue. canonical: https://time.com/author/walter-sinnott-armstrong/ og:title: TIME | Current & Breaking News | National & World Updates og:description: Breaking news and analysis from time.com. Politics, world news, photos, video, tech reviews, health, science, and entertainment news. og:url: https://time.com/author/walter-sinnott-armstrong/ og:site_name: TIME og:image: https://static.time.com/v3/assets/bltea6093859af6183b/bltde093bcdab65f2d0/6988d9b9bc6cfc69913e2a3c/time-logo.jpg?branch=production og:image:width: 300 og:image:height: 300 og:image:alt: Breaking news and analysis from time.com. Politics, world news, photos, video, tech reviews, health, science, and entertainment news. og:type: profile twitter:card: summary twitter:title: TIME | Current & Breaking News | National & World Updates twitter:description: Breaking news and analysis from time.com. Politics, world news, photos, video, tech reviews, health, science, and entertainment news. twitter:image: https://static.time.com/v3/assets/bltea6093859af6183b/bltde093bcdab65f2d0/6988d9b9bc6cfc69913e2a3c/time-logo.jpg?branch=production --- # Walter Sinnott-Armstrong ## Walter Sinnott-Armstrong _Sinnott-Armstrong is Chauncey Stillman Professor of Practical Ethics in the Department of Philosophy and the Kenan Institute for Ethics at Duke University, co-instructor of the Coursera online course “Think Again” and author of_ [Think Again: How to Reason and Argue](https://global.oup.com/academic/product/think-again-9780190627126?q=think%20again&lang=en&cc=us)_._ ## Walter Sinnott-Armstrong *  Jul 2, 2018 ### [How to Win Every Argument (2 Jul 2018)](https://time.com/5318965/how-to-win-an-argument/) And why we should all agree that people disagree in the wrong way [IDEAS](/section/ideas/) Meta: null ```json [{"@context":"https://schema.org","@type":"Organization","@id":"https://time.com/","name":"TIME","url":"https://time.com/","logo":{"@type":"ImageObject","url":"https://time.com/images/logo.png","width":528,"height":156},"foundingDate":"March 3, 1923","sameAs":["https://www.facebook.com/time","https://www.instagram.com/time/?hl=en","https://twitter.com/time","https://www.pinterest.com/timemagazine"]},{"@context":"https://schema.org","@type":"BreadcrumbList","itemListElement":[{"@type":"ListItem","position":1,"item":{"@id":"https://time.com/","name":"Home"}},{"@type":"ListItem","position":2,"item":{"@id":"https://time.com/author/walter-sinnott-armstrong/","name":"Walter Sinnott-Armstrong"}}]},{"@context":"https://schema.org","@type":"Person","@id":"https://time.com/author/walter-sinnott-armstrong/","mainEntityOfPage":{"@type":"WebPage","@id":"https://time.com/author/walter-sinnott-armstrong/"},"name":"Walter Sinnott-Armstrong","jobTitle":null,"description":"Sinnott-Armstrong is Chauncey Stillman Professor of Practical Ethics in the Department of Philosophy and the Kenan Institute for Ethics at Duke University, co-instructor of the Coursera online course “Think Again” and author of Think Again: How to Reason and Argue.","url":"https://time.com/author/walter-sinnott-armstrong/","worksFor":{"@type":"Organization","name":"TIME","url":"https://time.com/"}}] ```