The knowledge of nature and the mastery of nature have always belonged together. - Hugo Münsterberg

Only the subtle psychological individual analysis can overcome the superficial prejudices of group psychology.

Ethics could teach us only those purposes and ideals. If the teachers seeks insight into the means by which the aim can be reached, into the facts by which the child can be molded, his way must lead from ethics to psychology. (...) Water flows downhill, anyhow, but to bring the water uphill hydraulic forces are indeed necessary. To overcome nature and instead to prepare for a life of ideals, to inhibit personal desires and instead to learn to serve the higher purposes indeed demands most serious and most systematic efforts. It is the teachers' task to make these efforts with all his best knowledge of mind and body, of social and of cultural values.

WE have placed our psychotechnical interest at the service of economic tasks... The purpose before us was to find for every economic occupation the best-fitted personality, both in the interest of economic success and in the interest of personal development.