BORIS Leonidovich PASTERNAK won the Nobel Prize in Literature in 1958 "for his important achievement both in contemporary lyrical poetry and in the field of the great Russian epic tradition." -- the Nobel Prize committee. Pasternak had to decline the honor because of the protests in his home country. Doctor Zhivago became an international bestseller and was translated into 18 languages but circulated only in secrecy and translation in Russia. In 1987 the Union of Soviet Writers posthumously reinstated Pasternak, a move that gave his works a legitimacy they had lacked in the Soviet Union since