Quote 4
"Life […] is scientific, that's what it is. In a year or two when the war is over they'll be traveling to Mars and back. I know there isn't no beast—not with claws and all that I mean—but I know there isn't no fear either."
[…]
"Unless we get frightened of people." (5.99, 104)
There's nothing to be afraid of, says Piggy—unless we start to fear other people. Trust rational, scientific Piggy to understand.
"I don't care what they call me," he said confidentially, "so long as they don't call me what they used to call me in school."
Ralph was faintly interested.
"What was that?"
The fat boy glanced over his shoulder, then leaned toward Ralph.
He whispered.
"They used to call me Piggy!" (1.65-70)
Before the boys reveal their names, they are identified by their appearances. Ralph is "the fair boy" and Piggy the "fat" one. But Piggy's name itself refers to his weight, which means even back in the civilized world appearance determined identity. We might feel better knowing everyone's real name, but is there really a difference between being called "the fat boy" and "Piggy"? Aren't they really the same thing?
Quote 6
[Piggy] wiped his glasses and adjusted them on his button nose. The frame had made a deep, pink V on the bridge. (1.58)
Piggy’s glasses are an essential part of him and his identity.