"Erskine drank tea with me.  We were in a luscious flow of spirits and vastly merry. 'How we do chase a thought", said Erskine, 'when once it is started.  Let it run as it pleases over hill and dale and take numberless windings, still we are at it.  It has a greyhound at its heels every turn.'"

                                                                                James Boswell
                                                                                A Life of James Boswell
                                                                                Peter Martin