Source: Dictionary of Burning Words of Brilliant Writers (1895), P. 357.
“A true critic ought to dwell rather upon excellencies than imperfections, to discover the concealed beauties of a writer, and communicate to the world such things as are worth their observation.”
No. 291 (2 February 1712).
The Spectator (1711–1714)
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Joseph Addison 226
politician, writer and playwright 1672–1719Related quotes

“Ambition prompted many to become deceitful; to keep one thing concealed in the breast, and another ready on the tongue; to estimate friendships and enmities, not by their worth, but according to interest; and to carry rather a specious countenance than an honest heart.”
Ambitio multos mortales falsos fieri subegit, aliud clausum in pectore, aliud in lingua promptum habere, amicitias inimicitiasque non ex re, sed ex commodo aestimare, magisque vultum quam ingenium bonum habere.
Variant translation: It is the nature of ambition to make men liars and cheats, to hide the truth in their breasts, and show, like jugglers, another thing in their mouths, to cut all friendships and enmities to the measure of their own interest, and to make a good countenance without the help of good will.
Source: Bellum Catilinae (c. 44 BC), Chapter X, section 5
The Art of Doing Science and Engineering: Learning to Learn (1991)

“All writers have concealed more than they revealed.”
The Diary of Anaïs Nin, Vol. 5
Diary entries (1914 - 1974)
Context: One handles truths like dynamite. Literature is one vast hypocrisy, a giant deception, treachery. All writers have concealed more than they revealed.

“It's the imperfections that make things beautiful”
Source: The Summer I Turned Pretty
As written at on his blog http://wearethebest.wordpress.com/ts-satyan/.