sentences:  Marginalized and censored, he spent three years as a political prisoner.Ultimately reinstated during a late 1960s episode of liberalization, he continued to speak out against political restrictions, and came to be closely monitored by the Securitate secret police.In 1977, he joined Paul Goma and Ion Vianu in a civil society protest against the rule of Nicolae Ceauşescu, but was pressured into retracting.