The bugs to avoid are the ones that give customers both the inclination and the time to jump on a plane and track you down. (Keith Bostic)

Hope is not a strategy. [You cannot be complacent about edge cases that inevitably cause real outages with alarming regularity.] Told to me by Chris Newcombe (Amazon) via Sharon Perl (Google) quoting a VP Engineering at Google.

When you find that you’re in a hole; stop digging. (Keith Bostic)