Piggy is the most rational member on the island. He's intelligent, level
headed, and thinks before he speaks. Jack and the other boys are
threatened by his ability to vocalize his thoughts in a rational manner
and his loyalty to Ralph. Thus, they demean him at every opportunity.
Piggy's glasses also represent science and civilization. They make fire,
which makes them an object of desire. His glasses also symbolize the
ability to see clearly with clarity and understanding.
