Paul lengrand is a famous French adult educator and practitioner. 1965 published a report entitled "On lifelong education" at the Paris Adult Education Conference organized by UNESCO, which comprehensively and systematically expounded the concept of lifelong education and became an important document in the history of international education.

The formation of Langlin's lifelong education thought has gone through a long process. I received traditional education in Paris University in my early years, and later I gradually realized the disadvantages of traditional education in practice.