Ernest Hemingway said this quote

“ We were no longer, technically, children although in many ways I am quite sure that we were. Childish has become a term of contempt. Don't be childish, darling. I hope to Christ I am. Don't be childish yourself. It is possible to be grateful that no one that you would willingly associate with you say, Be mature. Be well-balanced, be well-adjusted. Africa, being as old as it is, makes all people except the professional invaders and spoilers into children. No one says to anyone in Africa, Why don't you grow up? . . . Men know that they are children in relation to the country and, as in armies, seniority and senility ride close together. But to have the heart of a child is not a disgrace. It is an honor. A man must comport himself as a man. . . . But it is never a reproach that he has kept a child's heart, a child's honesty and a child's freshness and nobility. ”