For I believe that mere pleasure and pain have less associative power than duty performed or omitted, and that the great use of the associative faculty is not to add beauty to material things, but to add force to the conscience. But for this external and all-powerful witness, the voice of the inward guide might be lost in each particular instance, almost as soon as disobeyed; the echo of it in after time, whereby, though perhaps feeble as warning, it becomes powerful as punishment, might be silenced, and the strength of the protection pass away in the lightness of the lash. Therefore it has received the power of enlisting external and unmeaning things in its aid, and transmitting to all that is indifferent, its own authority to reprove or reward, so that, as we travel the way of life, we have the choice, according to our working, of turning all the voices of nature into one song of rejoicing, and all her lifeless creatures into a glad company, whereof the meanest shall be beautiful in our eyes, by its kind message, or of withering and quenching her sympathy into a fearful, withdrawn, silence of condemnation, or into a crying out of her stones, and a shaking of her dust against us. Nor is it any marvel that the theoretic faculty should be overpowered by this momentous operation, and the indifferent appeals and inherent glories of external things in the end overlooked, when the perfection of God's works is felt only as the sweetness of his promises, and their admirableness only as the threatenings of his power. Sec. 11. How it is connected with impressions of beauty.