contrary views of the imagination, produce by the union the passions of hope or fear.
4. As this theory seems to carry its own evidence along with it, we shall be more concise in our proofs.
The passions of fear and hope may arise, when the chances are equal on both sides, and no superiority can be discovered in one above the other. Nay, in this situation the passions are rather the strongest, as the mind has then the least foundation to rest upon, and is tost with the greatest uncertainty. Throw in a superior degree of probability to the side of grief, you immediately see that passion diffuse itself over the composition, and tincture it into fear. Encrease the probability, and by that means the grief; the fear prevails still more and more, till at last it runs insensibly, as the joy continually diminishes, into pure grief. After you have brought it to this situation, diminish the grief, by a contrary operation to that, which encreased it, to wit, by diminishing the probability on the melancholy side; and you will see the passion clear every moment, till it changes insensiblyinto
