'And a change of habits, continued till it produces a change of tastes and desires, is necessary to prepare the sensualist to judge correctly with regard to things moral and religious. We must not therefore expect a good lecture, or an able book, to cure a skeptic of his doubts at once. It may produce an effect which, in time, if the party be faithful to duty, will _end_ in his conversion at a future day. The seed committed to the soil does not produce rich harvests in a day. A change of air and habits does not at once regenerate the invalid. The husbandman has to wait long for his crop: and the physician has to wait long for the recovery of his patient. And the skeptic has to wait long, till the seed of truth, deposited in his soul, unfolds its germs, and produces the rich ripe harvest of faith, and holiness, and joy. 'And preachers and teachers must not think it strange, if their hearers and readers are slow to change. Nor must they despond even though no signs of improvement appear for months or years. A change for the better in a student may not be manifest till it has been in progress for years. It may not be perfected for many years. You cannot force a change of mind, as you can force the growth of a plant in a hot-house. An attempt to do so might stop it altogether. Baxter said, two hundred years ago, 'Nothing so much hindereth the reception of the truth, as urging it on men with too much importunity, and falling too heavily on their errors.' 'Have patience, then. Teach, as your pupil may be prepared to learn, but respect the laws of the Eternal, which have fixed long intervals for slow and silent processes, between the seed-time and the harvest-home.' While I am in doubt as to whether I have put into my book too much on some subjects, I am thoroughly convinced that I have put into it too little on others. I have not said enough, nor half enough, on Atheism. I ought to have exposed its groundlessness, its folly, and its mischievous and miserable tendency at considerable length. This defect I shall try to remedy as soon as possible, and in the best way I can. Some weeks ago I read a paper before the M. E. Preachers' Meeting of Philadelphia, on ATHEISM,--what can it say for itself? The paper was received with great favor, and many asked for its publication. It will form the first article in my next volume. I expect, in fact, to give the subject of Atheism a pretty thorough examination in that volume, and to show that it is irrational and demoralizing from beginning to end, and to the last extreme.