What book Quoted A sense of humor is part the art life?

The quote "A sense of humor is part of the art of life" is often attributed to Samuel Butler, although there's no definitive source or book where it appears.

It's important to note that this quote is often misattributed. It's not an exact quote from Butler's work. It's likely a paraphrase or a combination of his ideas expressed in different works.

If you're looking for a source for this quote, it's best to approach it as a common saying that captures a sentiment expressed by Butler and many others.