“It is so. It cannot be otherwise.” That is not an easy lesson to learn. Even kings on their thrones have to keep reminding themselves of it. The late George V had these framed words hanging on the wall of his library in Buckingham Palace: “Teach me neither to cry for the moon nor over spilt milk.” The same thought is expressed by Schopenhauer in this way: “A good supply of resignation is of the first importance in providing for the journey of life.”