"Gorbachev was never willing to leap directly to a market economy in the way that Deng Xiaoping had done. He reminded the Politburo late in 1988 that Franklin D. Roosevelt had saved American capitalism by "borrowing] socialist ideas of planning, state regulation, [and] . . . the principle of more social fairness." The implication was that Gorbachev could save socialism by borrowing from capitalism, but just how remained uncertain. "[R]epeated incantations about 'socialist values' and purified ideas of October,'" Chernyaev observed several months later, "provoke an ironic response in knowing listeners. . . . [T]hey sense that there's nothing behind them." After the Soviet Union collapsed, Gorbachev acknowledged his failure. "The Achilles heel of socialism was the inability to link the socialist goal with the provision of incentives for efficient labor and the encouragement of initiative on the part of individuals. It became clear in practice that a market provides such incentives best of all.""