The bulk of Gray's poetry is very small, no larger, in fact, than that of Collins. Matthew Arnold argued in a famous essay that his productivity was checked by the uncongenial pseudo-classic spirit of the age, which, says Arnold, was like a chill north wind benumbing his inspiration, so that 'he never spoke out.' The main reason, however, is really to be found in Gray's own over-painstaking and diffident disposition. In him, as in Hamlet, anxious and scrupulous striving for perfection went far to paralyze the power of creation; he was unwilling to write except at his best, or to publish until he had subjected his work to repeated revisions, which sometimes, as in the case of his 'Elegy Written in a Country Churchyard,' extended over many years. He is the extreme type of the academic poet. His work shows, however, considerable variety, including real appreciation for Nature, as in the 'Ode on the Spring,' delightful quiet humor, as in the 'Ode on a Favorite Cat,' rather conventional moralizing, as in the 'Ode on a Distant Prospect of Eton College,' magnificent expression of the fundamental human emotions, as in the 'Elegy,' and warlike vigor in the 'Norse Ode' translated from the 'Poetic Edda' in his later years. In the latter he manifests his interest in Scandinavian antiquity, which had then become a minor object of romantic enthusiasm. The student should consider for himself the mingling of the true classic, pseudo-classic, and romantic elements in the poems, not least in the 'Elegy,' and the precise sources of their appeal and power. In form most of them are regular 'Horatian' odes, but 'The Bard' and 'The Progress of Poesy' are the best English examples of the genuine Pindaric ode.