of instinct: and we see therefore that they may depend on any number of links of unperceived, or, as we say, unconscious reasoning; and that their motive is also 'unconscious.' These actions stand half way between Reflex and Voluntary Actions.... "We now come to the third and last development of associated action. Here not only is each associated idea perceived, but the change, in each case, is also a fresh centre of association; whereby similar changes are connected with it, and it is referred to a class. Hence the whole train is perceived, not only by the classification of each of its parts with similar previous sensations, but by the classification of each of its sequences with previous like sequences: in other words, it is now a chain of reasoning from the past to the present. That associated pleasure from which this reasoned train commences is now called the _motive_ (though really the immediate motive power lies in the last transformation which directly precedes the active expression) and the series of ideas intervening between this and the action is called the _means_. Hence the motive associates the means, and the motive power is transmitted through them till it is finally expressed in the action which is appropriate to the attainment of the pleasurable state whose idea is its source. This association of means with ends is at first sight opposed to the natural direction, which is from antecedent to consequent; but when a line of nervous connection is formed, a current may be transmitted indifferently in either direction. An effect may lead us to think of its cause, as easily as a cause associates its effect. By the sequence of action and sensation, a connection is established between their ideas, which is independent of the order of excitation. This last kind of action is that which we call voluntary, and the series of classified ideas and relations which lead to it is called Reasoning. If at any point the current is attracted in two or more directions by different trains of association, deliberation is the result; and the eventual victory of one and the consequent transmission of the force along it is entitled Will.