Pierre Teilhard de Chardin | Jean-Baptiste-Siméon Chardin | Chardin | Jean Chardin | '''''Pierre Teilhard de Chardin |
During this period, Duhm says that he found inspiration in the works of Nietzsche, Hegel, van Gogh, Rudolf Steiner, Jesus, Laozi, Prentice Mulford, and Teilhard de Chardin; and he spent time in the Aktionsanalytische Organisation (AAO) with Otto Muehl at the Friedrichshof community in Austria, and with Bhagwan Shree Rajneesh in India.
One of the first major perspectives of Boulding's evolutionary perspective was his emphasis on know-how or, to use the term of Vladimir Vernadsky (1926) and Teilhard de Chardin (1959), which Boulding used as well, the "Noosphere."