because, you see, the princess and the gardener's son were so fond of each other they could not help being happy and besides, they had an elephant of their very own to ride on. if that is not enough to make people happy, i should like to know what is. though, of course, i know there are some people who could not be happy unless they had a whale to sail on, and perhaps not even then. but they are greedy, grasping people, the kind who would take four helps of pudding, as likely as not, which neither tom nor mary ann ever did.