The comedian David Mitchell was working on a jocular answer to the tricky question “What are things?” for his Guardian column when he wrote the following: “What is a call to prayer but a noisy sport without a scoring system? What is a drama but an unbelievably long comedy without any jokes? What is an…

Do you have your own rules for life? Your own set of principles you steadfastly stick to in any situation and can default to when faced with tough choices? You probably have a rough idea, but why not take the time to write them down? Having the main ones clarified and committed to paper will…