Early in the twentieth century, a tragedy was averted on an English estate when an alert gardener heard the cries of a young boy who had fallen into a pool. The gardener dove in, rescued the boy from drowning, and brought him to his parents.
As a reward, the English family sent the gardener's son to college. Decades later, when Winston Churchill was Prime Minister of Great Britain, he came down with pneumonia. The best physician was called in to keep him from dying. It was Dr. Alexander Fleming, the discoverer of penicillin. Fleming treated Churchill and he was healed. Ironically, Dr. Fleming was the son of the gardener who had saved Churchill from drowning in childhood.
Sometimes the best investment you can make is in helping someone get a good education.