The work of Cambridge scholar I. A. Richards, especially his "Practical Criticism" and "The Meaning of Meaning", which offered what was claimed to be an empirical scientific approach, were important to the development of New Critical methodology. Also very influential were the critical essays of T. S. Eliot, such as "Tradition and the Individual Talent" and "Hamlet and His Problems", in which Eliot developed his notion of the "objective correlative". Eliot's evaluative judgments, such as his condemnation of Milton and Dryden, his liking for the so-called metaphysical poets, and his insistence that poetry must be impersonal, greatly influenced the formation of the New Critical canon.