Miguel did his first school years at Saint John's, an exclusive English private school in Concepción. He continued his secondary education at "Liceo Enrique Molina" where at the age of 13 and 15, respectively, he met Marcello Ferrada de Noli and Bautista van Schouwen Vasey. With these friends and his elder brothers Marco Antonio and Edgardo Enríquez, Miguel would constitute at the end of the fifties the first core of comrades around his socialist-libertarian project of those early years. The same group would initiate a few years later the political nucleus at the youth section of the Socialist Party which under Miguel's university years evolved to the foundation of MIR.