The computer field is intoxicated with change. We have seen galloping growth over a period of four decades and it still does not seem to be slowing down. The field is not mature yet and already it accounts for a significant percentage of the Gross National Product both directly and indirectly. Fernando J. Corbató
She was intelligent enough to realize that her excitement was childish, but not mature enough to care. China Miéville
I started modeling quite young. I would really recommend to every girl not to start modeling until they turn 17, to be honest. Before that, I think you're not mature enough. Anja Rubik
I give the impression of elusiveness sometimes, and rightly, because I really do have an inner chamber in my temple I'm not mature enough to open. Northrop Frye
You only talk about moving forward with the same bad ideas that got us into this mess. Even when the only sensible thing to do is pull the emergency brake. You are not mature enough to tell it like it is. Even that burden you leave to your children. Greta Thunberg
Kids instinctively know - although they will argue to the contrary - that they really are not mature enough to make good decisions on some important issues. Zig Ziglar