Men ought to stay where they are: the change from a good climate to a bad one produces diseases, and others spring from the mere change itself.
 Montesquieu, Persian Letters (1721). copy citation

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Author Montesquieu
Source Persian Letters
Topic change disease
Date 1721
Language English
Reference
Note Translated by John Davidson
Weblink https://en.wikisource.org/wiki/Persian_Letters

Context

“Paris, the 9th of the moon of Rhamazan, 1718. Letter 122 Usbek to the Same The ordinary effect of colonies is to weaken the countries from which they are taken, without peopling those which are colonized.1 Men ought to stay where they are: the change from a good climate to a bad one produces diseases, and others spring from the mere change itself. The air, like the plants, is loaded with the particles of the soil of each country. It acts upon us in such a way as to fix our constitutions. When we are transported to a foreign country we become ill.” source