If commerce and manufactures increase the desire of well-being, it is because every passion gathers strength in proportion as it is cultivated, and is increased by all the efforts made to satiate it.
 Alexis de Tocqueville, Democracy in America (1840). copy citation

add
Author Alexis de Tocqueville
Source Democracy in America
Topic strength passion
Date 1840
Language English
Reference
Note Translated by Henry Reeve
Weblink http://www.gutenberg.org/files/816/816-h/816-h.htm

Context

“The taste for physical gratifications is not imparted to men by commerce or manufactures, but it is rather this taste which leads men to embark in commerce and manufactures, as a means by which they hope to satisfy themselves more promptly and more completely. If commerce and manufactures increase the desire of well-being, it is because every passion gathers strength in proportion as it is cultivated, and is increased by all the efforts made to satiate it. All the causes which make the love of worldly welfare predominate in the heart of man are favorable to the growth of commerce and manufactures. Equality of conditions is one of those causes; it encourages trade, not directly by giving men a taste for business, but indirectly by strengthening and expanding in their minds a taste for prosperity.]” source