List's fundamental doctrine was that a nation's true wealth is the full and many-sided development of its productive power, rather than its current exchange values.
Here particularly fully revealed his many-sided talent of the surgeon and researcher, physiologist, and engineer, has been particularly fruitful scientific, organizational, practical, educational and social activities.
It was he who drew up the reply to the malcontents on this occasion, for the first time demonstrating his many-sided ability and his genius for sustained hard work.
