War and Peace

 https://www.cliffsnotes.com/literature/w/war-and-peace/critical-essays/themes-in-war-and-peace

https://www.sparknotes.com/lit/warandpeace/section8/page/3/

https://www.newyorker.com/culture/cultural-comment/what-do-we-love-about-war-and-peace

https://brianedenton.medium.com/total-nihilistic-existential-breakdown-8db094c0c457

https://dailysun.bowdoin.edu/2015/12/leo-tolstoys-existential-journey-after-war-and-peace-and-anna-karenina-brain-pickings