Curiosity begins as an act of tearing to pieces or analysis.

Psychology is the science of the act of experiencing, and deals with the whole system of such acts as they make up mental life.

The thing of which the act of perception is the perception is experienced as something not mental.

When we come to images or memories or thoughts, speculation, while always closely related to practice, is more explicit, and it is in fact not immediately obvious that such processes can be described in any sense as practical.

We cannot therefore say that mental acts contain a cognitive as well as a conative element.

Desire then is the invasion of the whole self by the wish, which, as it invades, sets going more and more of the psychical processes; but at the same time, so long as it remains desire, does not succeed in getting possession of the self.

But unfortunately Locke treated ideas of reflection as if they were another class of objects of contemplation beside ideas of sensation.