This more detailed assessment, from Peccei's book "Human Quality", will also be relevant:
"Let me recapitulate what seems to me the crucial question at this point of the human venture. Man has acquired such decisive power that his future depends essentially on how he will use it. However, the business of human life has become so complicated that he is culturally unprepared even to understand his new position clearly. As a consequence, his current predicament is not only worsening but, with the accelerated tempo of events, may become decidedly catastrophic in a not too distant future. The downward trend of human fortunes can be countered and reversed only by the advent of a new humanism essentially based on and aiming at man’s cultural development, that is, a substantial improvement in human quality throughout the world."
On the morning of the last day of his life (March 14, 1984), while working on "The Club of Rome: Agenda for the End of the Century", Peccei dictated to his secretary from a hospital bed
"Human development is the most important goal."