In life as on holiday...
My favourite book of all time, Three Men in A Boat was first published in 1889 and tells the "true" story of three men and a dog who for reasons of overwork decide that they should row a boat up the Thames from London. I read it for the first time when I was a child, more than 20 years ago and every few years since. It is at times charming, interesting and very, very, funny. It contains useful lessons on diverse topics such as healthcare, musical instruments and work, "I like work, it fascinates me. I can sit and look at it for hours.". My favourite quote comes from Chapter 3 as the protagonists pack for their adventure and debate what to bring:
"We must not think of the things we could do with but only of the things we can't do without."
Jerome K. Jerome
Even the first time I read this I was struck about its elegant simplicity. We waste so much time and effort in many nice-to-have items while we only really need and care about a necessary few. Throughout my education I have seen this theme re-occurring many times. Mechanical Engineering introduces to efficiency as a ration of inputs to outputs when dealing with machines. Social psychology section refers to Maslow's hierarchy of needs when dealing with people (where higher level needs like self-actualisation became unimportant if basic physiological needs are not met). However, it is in lean six-sigma that Jerome's principle finds strong resonance.