It is really impossible to believe that any human being is incapable of understanding that, in allowing herself merely to smile at the expense of a fellow-creature who has loyally held out his hand to her, she is casting herself into a mire from which it will be impossible, with the best will in the world, ever to rescue her.
 Marcel Proust, Swann's Way (1913). copy citation

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Author Marcel Proust
Source Swann's Way
Topic understanding smile
Date 1913
Language English
Reference
Note Translated by C. K. Scott Moncrieff
Weblink http://www.gutenberg.org/files/7178/7178-h/7178-h.htm

Context

“he exclaimed, twisting his mouth into an expression of disgust so violent that he could feel the muscles of his throat stiffen against his collar. "How, in God's name, can a creature made in His image find anything to laugh at in those nauseating witticisms? The least sensitive nose must be driven away in horror from such stale exhalations. It is really impossible to believe that any human being is incapable of understanding that, in allowing herself merely to smile at the expense of a fellow-creature who has loyally held out his hand to her, she is casting herself into a mire from which it will be impossible, with the best will in the world, ever to rescue her. I dwell so many miles above the puddles in which these filthy little vermin sprawl and crawl and bawl their cheap obscenities, that I cannot possibly be spattered by the witticisms of a Verdurin!" he cried, tossing up his head and arrogantly straightening his body.” source