Extract from Thomas Jefferson to William G. Munford Monticello June 18. 99. I join you therefore in branding as cowardly the idea that the human mind is incapable of further advances. RC (NNC, Teachers College). PrC (DLC). Published in PTJ, 31:128–30. Print AuthorThomas JeffersonRecipientWilliam MunfordDate Range1791 - 1800DateJune 18, 1799CollectionQuotes by and about Thomas JeffersonRepositoryNNC-TDLCQuote CategoryEducation