A man’s ignorance sometimes is not only useful, but beautiful—while his knowledge, so called, is oftentimes worse than useless, besides being ugly.
 Henry David Thoreau, Walking (1851). copy citation

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Author Henry David Thoreau
Source Walking
Topic ignorance useless
Date 1851
Language English
Reference
Note
Weblink http://www.gutenberg.org/files/1022/1022-h/1022-h.htm

Context

“The very cows are driven to their country pastures before the end of May; though I have heard of one unnatural farmer who kept his cow in the barn and fed her on hay all the year round. So, frequently, the Society for the Diffusion of Useful Knowledge treats its cattle. A man’s ignorance sometimes is not only useful, but beautiful—while his knowledge, so called, is oftentimes worse than useless, besides being ugly. Which is the best man to deal with—he who knows nothing about a subject, and, what is extremely rare, knows that he knows nothing, or he who really knows something about it, but thinks that he knows all?” source