Thus the same object may supply a practical perception to one person and a speculative one to another, or the same person may perceive it partly practically and partly speculatively.

... when demand is being destroyed by expensive oil just as expensive oil is incentivising increased production - it should come as no surprise that at some point the markets would react.

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

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

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

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