Theories about uncertainty usually focus on its reduction. However, a significant source of uncertainty lies in the innovative and creative capabilities of the human mind. This particular source entangles us in contradictions: both reducing and creating uncertainty simultaneously. Therefore, a theory of uncertainty that solely investigates ways to reduce it is incomplete. It must be complemented by aspects of how uncertainty contributes the betterment of people. In our study, we establish a foundation for extending the theory of uncertainty in five steps. Drawing on the insights of William A. Duerr and Jean B. Duerr, who assert that faith, rather than measureable facts, guides forest resource management under uncertainty, we concentrate our analysis on informal institutions, customs, traditions etc. Firstly, we reconstruct the evolution of the internal culture of forestry. Secondly, we delineate the bourgeois culture and compare it with the internal culture of forestry. Thirdly, we develop a theoretical approach to the re-valuation of uncertainty. Fourthly, we combine the theoretical approach with a historical analysis of the Great Enrichment to provide a comprehensive understanding of an overall picture how people re-valuated uncertainty. This involves placing higher value on the chances of self-induced unforeseen changes higher than on the associated dangers. Finally, we summarize our findings and close the paper with suggestions for future research on the extension of a theory of uncertainty.