Pierre Guillaume Frédéric le Play

Lore & Background

Le Play was the son of a custom-house official and educated at the École Polytechnique and the École des Mines. As a young man at the École des Mines, he befriended a follower of the socialist thinker Saint-Simon. In the late 1820s, he undertook an immense walking tour of Germany investigating its mines. In 1830, a laboratory accident seriously damaged his left hand, leaving him disabled for life. While recovering in Paris, he witnessed the July Revolution and resolved to study the issues plaguing French society. In 1834, he became chairman of the permanent committee of mining statistics, and spent the remainder of the 1830s traveling Europe as a mining expert, conducting empirical studies on mines and their workers. He became engineer-in-chief and professor of metallurgy at the École des Mines in 1840, and inspector in 1848. During the 1840s he also managed a mining company in the Ural Mountains and met with leading French thinkers and politicians, including Félix Dupanloup, Alphonse de Lamartine, Charles Montalembert, Adolphe Thiers, and Alexis de Tocqueville.

For nearly a quarter of a century, Le Play traveled around Europe collecting material on the social and economic condition of the working classes. In 1855, he published Les Ouvriers Européens, a series of 36 monographs on the budgets of typical families, which won the Montyon prize from the Académie des Sciences. In 1856, he founded the Société internationale des études pratiques d'économie sociale. Emperor Napoleon III, who had met Le Play in Russia in the 1840s, entrusted him with organizing the Exhibition of 1855 and later appointed him to the Council of State, commissioner general of the Exhibition of 1867, senator of the empire, and Grand Officer of the Légion d'honneur. At the Emperor's prompting, Le Play published Social Reform in France (1864). Initially an atheist, he gradually became convinced of the need for religion and defended Christianity against Darwinism, scepticism, and racialism. After the Franco-Prussian War and the fall of the Second Empire in 1870, he founded the Unions of Social Peace. He converted to Roman Catholicism in 1879, three years before his death.

Reader's Guide

Le Play's significance lies in his pioneering empirical approach to social science, particularly his detailed family budget studies, and his conservative social philosophy. His work Les Ouvriers Européens established a method of using family budgets as a lens to understand social and economic conditions, influencing later sociological research. His essay Social Reform in France criticized the Enlightenment and the French Revolution, arguing that societies are free and must overcome the human propensity for evil. He looked to the Middle Ages as an exemplar of social relations and opposed the Revolution's rejection of France's Christian past. He emphasized the role of strong families, especially mothers and women, and tied social progress to homeownership and family inheritance, opposing partitive inheritance.

Le Play's legacy continued through disciples such as Adolphe Focillon, Émile Cheysson, and Henri de Tourville, among others. After an eclipse between the 1940s and 1960s, his methods resurfaced with the rise of family history as a field. In Britain, Peter Laslett used Le Play's methods to study family structures from census and property data. In France, legal historians and ethnologists like Georges Augustins reshaped his family types classification. Sociologists such as Paul Lazarsfeld and Antoine Savoye rediscovered his work, overcoming the view that his views were overly conservative. Historian and demographer Emmanuel Todd later used Le Play's family structure studies to link traditional family systems with ideological and societal movements in European history.

Did You Know?

• Le Play's left hand was permanently disabled in a laboratory accident in 1830.
• He witnessed the July Revolution of 1830 while recovering from his accident in Paris.
• He was appointed commissioner general of the Exhibition of 1867 by Emperor Napoleon III.
• He converted to Roman Catholicism in 1879, three years before his death.