四个现代化
Beginning at the Third Plenum of the Eleventh National Party Congress Central Committee in December 1978, intellectuals were encouraged to pursue research in support of the Four Modernizations and, as long as they complied with the party's "Four Cardinal Principles" they were given relatively free rein. When the party and the government determined that the structures of the four cardinal principles had been stretched beyond tolerable limits, they might restrict intellectual expression.