In this world we find that all happiness is followed by misery as its shadow. Life has its shadow, death. They must go together, because they are not contradictory, not two separate existences, but different manifestations of the same unit, life and death, sorrow and happiness, good and evil. The dualistic conception that good and evil are two separate entities, and that they are both going on eternally is absurd on the face of it. They are the diverse manifestations of one and the same fact, one time appearing as bad, and at another time as good. The difference does not exist in kind, but only in degree. They differ from each other in degree of intensity. We find as a fact that the same nerve systems carry good and bad sensations alike, and when the nerves are injured, neither sensation comes to us. If a certain nerve is paralysed, we do not get the pleasurable feelings that used to come along that wires and at the same time we do not get the painful feelings either. They are never two, but the same. Again. the same thing produces pleasure and pain at different times of life. The same phenomenon will produce pleasure in one, and pain in another. The eating of meat produces pleasure to a man, but pain to the animal which is eaten. There has never been anything which gives pleasure to all alike. Some are pleased, others displeased. So on it will go.