Some Philosophical Insights Regarding Knowledge
Humberto R. Maturana & Francisco J. Varela: The Roots of knowledge - the Biological Roots of Human Understanding
On intelligence, David Bohm with J. Krisnamurti
David Bohm: On the Relationship between Methodology in Scientific Research and the Content of Scientific Knowledge, The British Journal for the Philosophy of Science, 1961 (JSTOR)