The Beast is the evil that resides within man. The children were all aware that such a beast exists, but none of them realized (except Simon) that it lies within them. Manifested in three forms throughout the story, the Beast constantly plagues the littluns--the least conditioned by society.
Ralph
Ralph represents law, order, organized society and moral integrity. Throughout the novel he is constantly making commonsense rules for the boys to follow. As chief, he knows right from wrong. At the end of the novel he too realizes that man is not a kind creature by nature.
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