Photo by Helena Lopes on Unsplash Many years ago, I was sailing half a year on commercial ships engaged in worldwide trade and spending the other half of the year as a professor of nautical science at the United States Merchant Marine Academy. I did this for many years. I remember every year when a new class had been at the Academy for several months, some professors would grumble that “this group of midshipmen is terrible. They don’t know anything, and they are poor students