As a result of his research Snow discovered that Cholera, or the Black Death, as it was known, may have originated as a result of dirty water. He isolated a pump in Broad Street, London, as the source of the disease and agitated to have the handle removed.
However, Snow's theory was not popular and the authorities later had the handle on the pump replaced. It took another 20 years after his death before the idea was proved that germs in dirty water could cause disease.
Listening to each other is a critical aspect of learning how to get on with each other, and clearly is also a way in which we can learn from each other. Listening is a factor in humility which was so ably illustrated to us by Jesus.

