Two pieces of advice I received when much younger have had a huge influence on how I have lived:
Dad's observation that forming people into a team is just as much about care for them as it is about command, and my grammar school headmaster's certainty that our education in his school was intended to turn us into NCOs who actually make the world work satisfactorily.
Stanley Cornthwaite was shop manager of Booth's 1950s' Blackpool mini-market which stretched from the Promenade back to The Strand, and sold far more varieties of the groceries, meats, breads and cakes than many of its competitors.
Working there during several school holidays when I was a very impressionable 13/14 year-old was my first significant work experience, showed me that I would not go into retail, but was very pleasant and informative for most of the time.
I'm unsurprised that Booth's has grown and grown, and now has several high-quality, medium-size mini-markets across the North West. It is not at all a Pile'em High & Sell'em Cheap company.