Nothing is more disagreeable than a man's over-weaning conceit of himself
 David Hume, A Treatise of Human Nature (1738). copy citation

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Author David Hume
Source A Treatise of Human Nature
Topic conceit
Date 1738
Language English
Reference
Note
Weblink http://www.gutenberg.org/files/4705/4705-h/4705-h.htm

Context

“In like manner, therefore, as we establish the laws of nature, in order to secure property in society, and prevent the opposition of self-interest; we establish the rules of good-breeding, in order to prevent the opposition of men's pride, and render conversation agreeable and inoffensive. Nothing is more disagreeable than a man's over-weaning conceit of himself: Every one almost has a strong propensity to this vice: No one can well distinguish in himself betwixt the vice and virtue, or be certain, that his esteem of his own merit is well-founded: For these reasons, all direct expressions of this passion are condemned;” source