Mark Twain. (2025, January 18). Wikiquote. Retrieved 06:32, February 13, 2025 from https://en.wikiquote.org/w/index.php?title=Mark_Twain&oldid=3651028.
https://github.com/davepinch/pinchy.cc/blob/master/content/topics/works/m/mark-twain/the-mysterious-stranger/laughter/against-the-assault-of-laughter-nothing-can-stand.md