When we travail up the hill it is aginst our natural tendency and inclination,which perpetually is to desend;and therfore we can not go on ascending without labor and difficulty.But there arises a pleasent prospect to pay us our labor as we ascend,and as we cotinue our labor, still the pleasntness of the prospect grows.Just so is a man paid for his pain and self denial,wisdom is the payment we get for pain.