I've got the CONCH
Symbolism of the conch in Lord of the Flies
"You can't speak without the conch."
The boys first attempt to bring about order and establish rules for the island.
"And the conch shattered, and so did our dreams of survival"
Ralph knows that the conch symbolizes order and civilization on the island. When the conch is gone, so is the order and civilization necessary for survival.
"And the third quote that I can't think of..."
And the explanation of the 3rd quote...
Pretend this is a conch instead of yellow flowers