" In her book Creed or Chaos?, Sayers addresses the traditional seven deadly sins, including acedia, which is often translated as “sloth.” But as Sayers explains it, that is a misnomer, because laziness (the way we normally define sloth) is not the real nature of this condition. Acedia, she says, means a life driven by mere cost-benefit analysis of “what’s in it for me.” She writes, “Acedia is the sin which believes in nothing, cares for nothing, enjoys nothing, loves nothing, hates nothing, finds purpose in nothing, lives for nothing and only remains alive because there is nothing for which it will die. "

― Timothy J. Keller , Every Good Endeavor: Connecting Your Work to God's Plan for the World