We must now consider the causes of pleasure: and under this head there are eight points of inquiry:
A Whether operation is the proper cause of pleasure?
A Whether movement is a cause of pleasure?
A Whether hope and memory cause pleasure?
A Whether sadness causes pleasure?
A Whether the actions of others are a cause of pleasure to us?
A Whether doing good to another is a cause of pleasure?
A Whether likeness is a cause of pleasure?
A Whether wonder is a cause of pleasure?