Rare is the human being, immature or mature, who has never felt an impulse to pretend he is some one or something else.
George Pierce Baker
You can only be young once. But you can always be immature.
Dave Barry
When you are 20 years old, you are immature.
Melky Cabrera
Immature poets imitate; mature poets steal.
T. S. Eliot
Boys in their twenties are a waste of time. They have nothing to offer conversationally; they're immature. I feel like I have a better shot with... →
Megan Fox
Immature love says: 'I love you because I need you.' Mature love says 'I need you because I love you.'
Erich Fromm
If I'm among my boys or people I've grown up with, I can be immature.
Jack O'Connell
I'm immature.
Christina Ricci
Humanity has advanced, when it has advanced, not because it has been sober, responsible, and cautious, but because it has been playful, rebellious... →
Tom Robbins
My rookie year, I was very immature.
Dennis Rodman