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.

It may be added, to prevent misunderstanding, that when I speak of contemplated objects in this last phrase as objects of contemplation, the act of contemplation itself is of course an enjoyment.

It is more difficult to designate this form of conation on its practical side by a satisfactory name.

Hence, in desiring, the more the enjoyment is delayed, the more fancy begins to weave about the object images of future fruition, and to clothe the desired object with properties calculated to inflame the impulse.

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.