While in prison , he studied English and read books on history and philosophy .
In 1970 , Flores , together with Collazo and Cancel Miranda , participated in a prison strike and stopped working because of the abuses by some of the guards against them .
While in prison , Cancel Miranda studied English and read books on history and philosophy .
In 1970 , Flores , together with Collazo and Cancel Miranda , participated in a prison strike and stopped working because of the abuses by some of the guards against them .