“I'm not young enough to know everything.”
“I am not young enough to know everything.”
“I'm young, but I'm already screwing up my life. I'm smart but not enough -- just smart enough to have problems.”
“Old enough to know better and young enough to want to do it anyway.”
“She's everything I wanted when I was young and everything I distrust now that I'm not.”
“Young believes everything, middle-aged suspects everything , old knows everything”