The title of this post is a quote from an interview with the late author Kurt Vonnegut. Here's another quote I like:

Interviewer: “A lack of seriousness,” you wrote, “has led to all sorts of wonderful insights.”

Vonnegut: Yes. The world is too serious. To get mad at a work of art — because maybe somebody, somewhere is blowing his stack over what I’ve done — is like getting mad at a hot fudge sundae.

Both these quotes are good to keep in mind during your day-to-day living. Along with this speech from Jim Valvano three weeks before his death:

Thanks to Megan Mahan and Tim Ferriss for pointing these out and giving me a little perspective (something we all can use more of 99% of the time)..