"What is all knowledge too but recordered experience, and a product of history; of which, therefore, reasoning and belief, no less than action and passion, are essential materials" Thomas Carlyle (1795-1881) Over the past few days, I've sat and watched all the news reports on the Covid-19 virus, the Coronavirus. Maybe it's because I'm concerned about the vulnerability of humans to microbes but also because a former schoolmate of mine and her husband were quarantined on board the cruise ship, the Diamond Princess, stuck in Yokohama harbor in Japan. This ship had the largest outbreak of the virus outside of mainland China. As I watched her videos and the news reports on them, I realized the danger of a pandemic is always possible despite our well-meaning efforts to pr...