Conduplicatio resembles anadiplosis in the repetition of a preceding word, but it repeats a key word (not just the last word) from a preceding phrase, clause, or sentence, at the beginning of the next.

• If this is the first time duty has moved him to act against his desires, he is a very weak man indeed. Duty should be cultivated and obeyed in spite of its frequent conflict with selfish wishes.
• The strength of the passions will never be accepted as an excuse for complying with them; the passions were designed for subjection, and if a man suffers them to get the upper hand, he then betrays the liberty of his own soul. --Alexander Pope
• She fed the goldfish every day with the new pellets brought from Japan. Gradually the goldfish began to turn a brighter orange than before.

Like anadiplosis, conduplicatio serves as an effective focusing device because with it you can pull out that important idea from the sentence before and put it clearly at the front of the new sentence, showing the reader just what he should be concentrating on. Since keeping the reader focused on your train of thought is critical to good writing, this device can be especially helpful as a transitional connector when the previous sentence has two or more possible main points, only one of which is to be continued in the discussion. Suppose, for example, you have this sentence:

• Submitting a constitutional amendment to a popular vote through a general referendum always runs the risk of a campaign and a vote based upon the selfishness rather than the sense of justice of the voter.

Now, the next sentence could begin with, "Previous campaigns . . ." or "The strength of the appeal to selfish interests . . . "or "Therefore constitutional amendments are best left . . ." all depending on which concept you wish to develop. If you began the next sentence with, "But there certainly can be no doubt that the general referendum will continue to be exploited by those whose issues are aided by the innate selfishness of human beings," the reader would have to go a considerable distance into the sentence before he would find out exactly which idea is being carried forward and developed.