Nobody can be at a loss to explain what is meant by a quality
 Adam Smith, The Theory of Moral Sentiments (1759). copy citation

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Author Adam Smith
Source The Theory of Moral Sentiments
Topic loss quality
Date 1759
Language English
Reference
Note
Weblink https://en.wikisource.org/wiki/The_Theory_of_Moral_Sentiments

Context

“Now, I say, the original invention of such words would require a yet greater effort of abstraction and generalization than that of nouns adjective. First of all, a relation is, in itself, a more metaphysical object than a quality. Nobody can be at a loss to explain what is meant by a quality; but few people will find themselves able to express, very distinctly, what is understood by a relation. Qualities are almost always the objects of our external senses; relations never are.5 No wonder, therefore, that the one set of objects should be so much more comprehensible than the other.” source