Sentence:  One might , indeed , argue that the history of ideas , in so far as it includes the literatures , must center on characterizations of human nature and that the <WSD>great</WSD> periods of literary achievement may be distinguished from one another by reference to the images of human nature that they succeed in fashioning . 
Meaning of the word marked with <WSD> tags:  relatively large in size or number or extent; larger than others of its kind