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

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

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

You can mark in desire the rising of the tide, as the appetite more and more invades the personality, appealing, as it does, not merely to the sensory side of the self, but to its ideal components as well.

The perceptive act is a reaction of the mind upon the object of which it is the perception.

The sensory acts are accordingly distinguished by their objects.

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