The nurse must live rather more comfortably, she must have rather more substantial food, but her whole way of living must not be altered, for a sudden change, even a change for the better, is dangerous to health, and since her usual way of life has made her healthy and strong, why change it?
 Jean-Jacques Rousseau, Emile, or On Education (1762). copy citation

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

Context

“A child should know no betters but its father and mother, or failing them its foster-mother and its tutor, and even this is one too many, but this division is inevitable, and the best that can be done in the way of remedy is that the man and woman who control him shall be so well agreed with regard to him that they seem like one.
The nurse must live rather more comfortably, she must have rather more substantial food, but her whole way of living must not be altered, for a sudden change, even a change for the better, is dangerous to health, and since her usual way of life has made her healthy and strong, why change it? Country women eat less meat and more vegetables than towns-women, and this vegetarian diet seems favourable rather than otherwise to themselves and their children. When they take nurslings from the upper classes they eat meat and broth with the idea that they will form better chyle and supply more milk.” source