The Marks of Immaturity, and How to Keep Growing

The Marks of Immaturity, and How to Keep Growing: "Selfishness is one telltale sign of immaturity. Babies are completely self-centered. They scream if they don't get what they want when they want it. All they are aware of are their own needs and desires. They never say thanks for anything. They can't help others; they can't give anything. They can only receive."