Compiled by Gerard Roberts (BTheol)
The Korean term 완성 (wansung) is translated in the Exposition of the Divine Principle as "perfect/perfection". The actual meaning is "complete/completion". The Chinese character 完 (wan) means "finish", and 成 (sung) means "become". The Korean words used for "perfect" is 완벽 (wanbeuk) or 완미 (wanmi), which are comprised of the characters "finish (完) a specific type of jade artifact (璧)" and "finish (完) beauty (美)", respectively. Although theoretically, with our understanding of beauty, finished and beautiful might also sound correct, but the fact is the Korean terms for perfection "wanbeuk" and "wanmi" are not used in place of the term for completion "wansung". So there is a clear distinction between the concepts of completion and perfection. (Reported by Rev. Namhi Hwang - thank you)
There are differing preferences, among Unificationist scholars, for the English translation. Yoshihiro Masuda translates 공생공영공의주의 as "the principles of co-living (symbiosis), co-prosperity, and co-righteousness." For an explanation see pp 185-191 in:
Masuda, Yoshihiko. “F. D. Maurice, His Christian Socialist Movement, and Some Thoughts on ‘Socialism of the Heavenly Side’.” Journal of Unification Theology 3 (Sun Moon University: Korea, September 1998): 153-99. Download pdf here. (Source: rs2.riss4u.net)
Sang Hun Lee and Sung-Bae Jin explain it as "mutual existence, mutual prosperity and mutual righteousness":
Lee, Sang Hun and Jin, Sung-Bae. "Principle of Mutual Existence, Mutual Prosperity and Mutual Righteousness" in New Essentials Of Unification Thought - Head-Wing Thought (Kogensha: Tokyo, 2006), pp. 507-523.
Also by Yoshihiko Masuda (1946 – 2015): From Dependence and Independence towards Interdependence: An Analysis of Cultural Trends in the Family and in the World*, Journal of Unification Studies Vol. 1, 1997 – Pages 93-108
Further Reading
Exposition of the Divine Principle (1996) Part 2. Chapter 4 – The Parallels between the Two Ages in the Providence of Restoration. 7.2.7 The Ideals of Interdependence, Mutual Prosperity and Universally Shared Values versus Communism, pp. 342-344
Lee, Sang Hun. New Essentials of Unification Thought: Head-Wing Thought, edited by Sung-Bae Jin. Tokyo: Kogensha, 2006. Appendix I. Principle of Mutual Existence, Mutual Prosperity and Mutual Righteousness pp. 507-524
Cheon Seong Gyeong 2014: The Holy Scripture of Cheon Il Guk
Book 10 The Philosophy of Peace
CHAPTER 2. How Will Peace Be Realized?
Section 4. Peace in the World
Paragraphs 6-8, Interdependence, mutual prosperity and universally shared values
Paras. 9-25, Head-wing thought
Paras. 26-31, A world-level ideology
Paras. 32-42, A cosmic-level ideology
A Compilation of Academic Exploration on the Principles of Interdependence,
Mutual Prosperity, and Universal Value, Edited by Thomas Selover. Seorak-myeon: The Professors World Peace Academy International, 2021
Schairer, Robert. “The Ideal of Interdependence in Cheon Il Guk and Corporate
Governance.” Journal of Unification Studies Vol. 18, 2017 – Pages 217 – 251