sentences:  Brzezinski knew the tough economic realities of those living in the Eastern Bloc, particularly the permanent shortage of goods, and that their attachment to the Soviet Union was born of historic necessity, rather than common ideology.Brzezinski suggested enticing these countries economically and through educational and cultural exchanges, which would appeal to intellectuals, followed by favoritism for regimes showing signs of liberalization or less reliance on Moscow.Through that approach, Brzezinski "offered a realistic, evolutionary alternative to empty political rhetoric."