in probable questions, is divided betwixt the contrary points of view, the heart must in the same manner be divided betwixt opposite emotions.
Now, if we consider the human mind, we shall observe, that, with regard to the passions, it is not like a wind-instrument of music, which, in running over all the notes, immediately loses the sound when the breath ceases; but rather resembles a string-instrument, where, after each stroke, the vibrations still retain some sound, which gradually and insensibly decays. The imagination is extremely quick and agile; but the passions, in comparison, are slow and restive: For which reason, when any object is presented, which affords a variety of views to the one and emotions to the other; tho' the fancy may change its views with great celerity; each stroke will not produce a clear and distinct note of passion, but the one passion will always be mixt and confounded with the other. According as the probability inclines to good or evil, the passion of grief or joy predominates in the composition; and these passions, being intermingled by means of thecontrary
