the imagination, as yet unstirred by changing passions, is scarcely susceptible of emotion, and we have not enough experience to discern beforehand from one sense the promise of another.
 Jean-Jacques Rousseau, Emile, or On Education (1762). copy citation

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Author Jean-Jacques Rousseau
Source Emile, or On Education
Topic imagination passion
Date 1762
Language English
Reference
Note Translated by Barbara Foxley
Weblink http://www.gutenberg.org/cache/epub/5427/pg5427-images.html

Context

“The sweet perfumes of a dressing-room are not so slight a snare as you may fancy them, and I hardly know whether to congratulate or condole with that wise and somewhat insensible person whose senses are never stirred by the scent of the flowers his mistress wears in her bosom. Hence the sense of smell should not be over-active in early childhood; the imagination, as yet unstirred by changing passions, is scarcely susceptible of emotion, and we have not enough experience to discern beforehand from one sense the promise of another. This view is confirmed by observation, and it is certain that the sense of smell is dull and almost blunted in most children. Not that their sensations are less acute than those of grown-up people, but that there is no idea associated with them;” source