Physics Before his literary career, in 1921 he published a popular science book entitled Einstein"s theories: a new face in the world. This book is among the first in French on relativity, with a foreword by Albert Einstein. Einstein replied to Maurice Solovine that the text serving as preface was a letter to the addressee purchased by Fabre.
After Einstein had contacted the editor, the preface of the book was withdrawn for the second edition in 1922, but replaced by a derogatory comment to Einstein According to other sources, it seems that Einstein criticized Fabre mainly for mentioning in his preface his pacifist views, at a time when it was a danger in the eyes of the German public.
Literature.
He kept all his life bonds of affection and conviction with the socialist circles, and in particular with Léon Blum.