A reporter once asked a farmer to divulge the secret behind his corn, which won the state fair contest year after year. The farmer confessed it was all because he shared his seeds with his neighbours. “Why do you share your best seed corn with your neighbours when you’re entering the same contest each year as well?” asked the reporter.
“Why sir” said the farmer, Didn’t you know that the wind picks up pollen from the ripening corn and swirls it from field to field? If my neighbours grew inferior corn, cross-pollination would steadily degrade the quality of my corn. If I am to grow good corn, I must help my neighbours do the same.