When Ideas have Consequences

In 1889, the French novelist Paul Bourget penned The Disciple, where he depicted the life of a renowned philosopher and psychologist, whose existence was marked by a seemingly monotonous routine. Living in a modest apartment on the top floor of a building, the philosopher’s life revolved around academic pursuits—meals, walks, coffee, and lectures.

Three times a week, from four to six, he entertained visits from scholars and students before having…