"Motives are very often immaterial with reference to the manner of disposing of a suit. It has been said by an eminent Judge, that if you were to look into motives of suitors, Courts of justice would not sit above a month in the year, and would have little to do. Of course there are, in numerous instances, motives for litigation which, if they could be looked into, would prevent a Court of justice from interfering. But generally I agree that it is not the rule so to regard them."