“Man is the child of customs, not the child of his ancestors.”

Understanding the quote

Ibn Khaldun argues that people are shaped mainly by customs and habitual practice rather than by bloodline alone. This claim fits his broader Muqaddimah analysis of social formation and change. The familiar one-line version is a modern rendering of a passage attributed to that work, not a securely documented verbatim sentence.

In the original · Arabic

الإنسان ابن عوائده، وليس ابن أجداده

The story behind it

Ibn Khaldun combined scholarship and action: he wrote a detailed autobiography and completed much of the Muqaddimah during a concentrated retreat near Frenda.

Going further

The era

In the 14th century, amid competing North African and Andalusian dynasties, Ibn Khaldun developed his theories of social cohesion and decline.

The thinking

He emphasizes habit: repeated actions become durable tendencies. Practically, this means everyday practices and environments shape skills, tastes, and behavior more than mere ancestry.

Key word

Habit: an acquired disposition formed by repeated actions that shapes conduct.

Who quoted it

The line is widely shared on quotation sites and social media today as a pithy challenge to hereditary determinism and in debates on culture and privilege.