and influenced English poets in the 1950s. The philosopher Ludwig Wittgenstein was an acquaintance at Cambridge, but Empson consistently denied any previous or direct influence on his work. Empson's best-known work is the book Seven Types of Ambiguity, which, together with Some Versions of Pastoral and The Structure of Complex Words, mines the astonishing riches of linguistic ambiguity in English poetic literature. Empson's studies unearth layer upon layer of irony, suggestion and argumentation in various literary works, applying a technique of textual criticism so influential that often Empson's contributions to certain domains of literary scholarship remain significant, though they may no longer be recognised as his. The universal recognition of the difficulty and complexity (indeed, ambiguity) of Shakespeare's Sonnet 94 ("They that have power ..."), for instance, is traceable to Empson's analysis in Some Versions of Pastoral. Empson's study of "Sonnet 94" goes some way towards explaining the high esteem in which the sonnet is now held (often being reckoned as among the finest sonnets), as well as the technique of criticism and interpretation that has thus reckoned it. Empson's technique of teasing a rich variety of interpretations from poetic literature does not, however, exhaustively characterise his critical practice. He was also very interested in the human or experiential reality to be discovered in great works of literature, as is manifest, for instance, in his discussion of the fortunes of the notion of proletarian literature in Some Versions of Pastoral. His commitment to unravelling or articulating the experiential truth or reality in literature permitted him unusual avenues to explore sociopolitical ideas in literature in a vein very different from contemporary Marxist critics or scholars of New Historicism. Thus, for instance, Empson remarks in the first few pages of Some Versions of Pastoral that: Gray's Elegy is an odd case of poetry with latent political ideas: Full many a gem of purest ray serene The dark, unfathomed caves of ocean bear; Full many a flower is born to blush unseen And waste its sweetness on the desert air. What this means, as the context makes clear, is that eighteenth century England had no scholarship system or carrière ouverte aux talents. This is stated as pathetic, but the reader is put into a mood in which one would not try to alter it. ... By comparing the social arrangement to Nature he makes it seem inevitable, which it was not, and gives