Mironescu's first journalistic contribution appeared in Credința newspaper in 1935;[1] exploring both domestic and foreign affairs, he neither commented on daily events as such, nor held firm to a particular ideology, but took the stance of an independent observer, condemning the intellectual elites' isolation with regard to the national, socioeconomic and cultural interest.
His work appeared in Evenimentul zilei, Fapta, Familia, Azi, Țara noastră, Vremea, and Revista Fundațiilor Regale.
He authored a number of organic chemistry textbooks and treatises, and translated André Gide's Retour de l'U.R.S.S.
[fr][1] A devoted practitioner of hesychasm,[5] Mironescu was, from 1945 to 1948 and again from 1953 to 1958,[6] an adherent of the "Burning Bush" (Rugul Aprins) group within the Romanian Orthodox Church.
He stopped publishing after the advent of the Communist regime,[5] and in 1958, together with his son, Șerban, was arrested for his clandestine religious activity.