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But, perhaps, the flatterer is not often detected; for an honest mind is not apt to suspect, and no one exerts the power of discernment with much vigour when selflove favors the deceit.

Samuel Johnson, Arthur Murphy (1857). “The Works of Samuel Johnson, LL.D.: With an Essay on His Life and Genius”, p.122
But, perhaps, the flatterer is not often detected; for an honest mind is not apt to suspect, and no one exerts the power of discernment with much vigour when selflove favors the deceit.