In view of the ecstatic response of Western hostile forces to the
"grand failure of communism," and the pessimism of those who once
believed in socialism, Deng Xiaoping said categorically, "After a long
time, socialism will necessarily supersede capitalism. This is an
irreversible general trend of historical development.....Some
countries have suffered major setbacks, and socialism appears to have
been weakened. But the people have been tempered by the setbacks and
have drawn lessons from them, and that will make socialism develop in
a healthier direction."[i] This conclusion has been borne out by the
successful practice of socialism with Chinese characteristics in China
and will be further borne out in the coming century by socialist
practice throughout the world, including that in China.
http://www.politicalaffairs.net/deng-xiaoping-theory-and-the-historical-destiny-of-socialism/