Quote 1
"Well I won't. But I gotta do something. It seems like there's gotta be someplace without greasers or Socs, with just people. Plain, ordinary people." (3.83)
Johnny takes back his threat to commit suicide, but still showing the depths of his desperation. Like Pony, the constant threat of violence from the Socials is coloring his entire world. He dreams of a place where people get past such divisions. In a way, he found that place in the church on Jay Mountain.
Quote 2
"I had to. They were drowning you Pony. They might have killed you. And they had a blade… They were gonna beat me up." (4.28)
Johnny argues that killing Bob was an act of loyalty to himself, and to Ponyboy. What do you think?
Quote 3
"My parents," Johnny repeated doggedly, "did they ask about me." (6.19)
"No," snapped Dally, "they didn't." (6.20)
Johnny is most isolated by his relationship with his parents. Their abuse and neglect makes him feel completely worthless.
Quote 4
"I never noticed colors or clouds and stuff until you keep reminding me about them. It's almost like they weren't there before." (5.63)
Johnny is getting nature appreciation training from Pony. Becoming aware of the beauty of nature is a major awakening for him. Even though he doesn't live long enough to fully appreciate it, Johnny's expanded vision is reflected in his deathbed letter.
Quote 5
"I'm sure. It ain't fair for Ponyboy to have to stay up in that church with Soda and Darry worryin' about him all the time." (6.17)
Before the fire, Johnny makes the brave decision to turn himself in. The fact that he takes the needs of Pony, Darry, and Soda into account in his decision shows how what a thoughtful person he's growing into.