Next book will be three dialogues by berkley. Hume didn"t want to give any metaphysical commitment perhaps they existed but we can"t say anything about how they are like or any causal origins of them. In addition to our sense perceptions of this red book we are not giving some additional piece of information that tells us how it caused us to see red. Locke and berkley take different positions even though they believe knowledge comes from experience. Locke is quite adamant in saying there is a metaphysical object that is the object of our perception. Locke is discussed because she wants to talk more about the external object it"s very important to understand this because berkley is criticizing locke. Hume"s speel on causility from things that happend in the past we expect them to happen that way in the future we would observe an a let a represent the billiard balls moving on the billiard table.