We must now consider the causes of pleasure: and under this head there are eight points of inquiry:

A[1] Whether operation is the proper cause of pleasure?

A[2] Whether movement is a cause of pleasure?

A[3] Whether hope and memory cause pleasure?

A[4] Whether sadness causes pleasure?

A[5] Whether the actions of others are a cause of pleasure to us?

A[6] Whether doing good to another is a cause of pleasure?

A[7] Whether likeness is a cause of pleasure?

A[8] Whether wonder is a cause of pleasure?