The Life of Reason by George Santayana — Read

Art is spontaneous action made stable by success.

Action which is purely spontaneous is merely tentative. Any experience of success or utility which might have preceded, if it availed to make action sure, would avail to make it also intentional and conscious of its ulterior results. Now the actual issue which an action is destined to have, since it is something future and problematical, can exert no influence on its own antecedents; but if any picture of what the issue is likely to be accompanies the heat and momentum of action, that picture being, of all antecedents in the operation, the one most easily remembered and described, may be picked out as essential, and dignified with the name of motive or cause. This will not happen to every prophetic idea; we may live in fear and trembling as easily as with an arrogant consciousness of power. The difference flows from the greater or lesser affinity that happens to exist between expectation and instinct. Action remains always, in its initial phase, spontaneous and automatic; it retains an inwardly grounded and perfectly blind tendency of its own; but this tendency may agree or clash with the motor impulses subtending whatever ideas may at the same time people the fancy. If the blind and the ideal impulses agree, spontaneous action is voluntary and its result intentional; if they clash, the ideas remain speculative and idle, random, ineffectual wishes; while the result, not being referable to any idea, is put down to fate. The sense of power, accordingly, shows either that events have largely satisfied desire, so that natural tendency goes hand in hand with the suggestions of experience, or else that experience has not been allowed to count at all and that the future is being painted a priori. In the latter case the sense of power is illusory. Action will then never really issue in the way intended, and even thought will only seem to make progress by constantly forgetting its original direction.