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

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

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.

Mental life is indeed practical through and through. It begins in practice and it ends in practice.

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.

... 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.