The French philosopher Alain (1868-1951), pseudonym of Émile-Auguste Chartier, was one of the most active voices in the ethical and political debates of his time, always from pacifist and antifascist positions, to the point that he has been called the "conscience of the Third Republic". The sense of civic duty led him to volunteer to participate in the First World War, an experience that would lead him to write his famous Mars ou la guerre jugée (1936). The genre with which he has most been identified are the propos, concise and suggestive texts that have won him the favor of the public but not always the assessment of the critics. Among his works translated into Castilian are: Talks about education-child pedagogy (Losada); Look far (RBA); In search of understanding (Losada).