Old age comes gradually, yet its arrival is often punctuated by unwanted events, like a visit to a dentist.  So it was for Daniel Klein, author of, “Travels with Epicurus—A Journey to a Greek Island in Search of a Fulfilled Life.” Mr. Klein’s dentist recommended he spend thousands of dollars to buy implants, which would require nearly a year of painful appointments with an oral surgeon and several weeks of living on the equivalent of baby food.  Continue reading →