Retrospective & Anticipatory Conclusion
While it does not occur so frequently as the two kinds just illustrated it is possible for a conclusion to be both retrospective and anticipatory—to look both backward and forward.
The conclusion may enforce what the speech has declared or proved, then using this position as a safe starting point for a new departure, look forward and indicate what may follow or what should be done. The only danger in such an attempt is that the dual aspect may be difficult to make effective. Either one may neutralize the other. Still, a careful thinker and master of clear language may be able to carry an audience with him in such a treatment. The division in the conclusion between the backward glance and the forward vision need not be equal. Here again the effect to be made upon the audience, the purpose of the speech, must be the determining factor. Notice how the two are blended in the following conclusion from a much read commemorative oration.
And now, friends and fellow-citizens, it is time to bring this discourse to a close.
We have indulged in gratifying recollections of the past, in the prosperity and pleasures of the present, and in high hopes for the future. But let us remember that we have duties and obligations to perform, corresponding to the blessings which we enjoy. Let us remember the trust, the sacred trust, attaching to the rich inheritance which we have received from our fathers. Let us feel our personal responsibility, to the full extent of our power and influence, for the preservation of the principles of civil and religious liberty. And let us remember that it is only religion, and morals, and knowledge, that can make men respectable, under any form of government....
Daniel Webster: Completion of Bunker Hill Monument, 1843
Conclusions are classified in general under three headings: 1. Recapitulation; 2. Summary; 3. Peroration.

