Edit: this is probably one of the most genius comments written this year.
The professor had completed the translation of 20 of the 45 volumes himself and accompanied the project till its completion at the end of September. The "Summa" of the Dominican friar and Doctor of the Church, St. Thomas Aquinas (from 1225-1274) is counted of the most important theologico-philosophical works of the Middle Ages.
Inagaki, who was himself baptized as a student, learned of the work of Thomas Aquinas, among other things, from a US Officer stationed in Japan after the Second World War. Later he studied the concept of Thomas' natural law. As a translation project he pushed through the eleventh volume.
His favorite edition of the "Summa theological" remained according to Ucanews, a 1952 soft cover exemplar for the general US market with the title "My Way of Life". The title made correct statement that Thomas wanted to make an instruction manual for people "who really wanted to be truly and actually happy", said Inagaki.
There were 15 researchers participating in the Japanese translation by the agency. Half of them did not survive to finish the last volume. The founder of the publishing house, in which the Japanese "Summa" appeared, died two days after the completion of the galley proof of the last volume. A Latin-German, was begun to 34 volumes of the extant edition in 1933. It is still not finished.