The mental act of sensation which issues in reflex movement is so simple as to defy analysis.

It is convenient to distinguish the two kinds of experience which have thus been described, the experienc-ing and the experienc-ed, by technical words.

For psychological purposes the most important differences in conation are those in virtue of which the object is revealed as sensed or perceived or imaged or remembered or thought.

Both expectations and memories are more than mere images founded on previous experience.

An expectation is a future object, recognised as belonging to me.

The interval between a cold expectation and a warm desire may be filled by expectations of varying degrees of warmth or by desires of varying degrees of coldness.

In the perception of a tree we can distinguish the act of experiencing, or perceiving, from the thing experienced, or perceived.