Don´t let your self grow to fast. Take your time growing up and don´t lose your innocence
One piece of evidence is when Johnny tell the doctor to give this book to Ponyboy to let him finish the book. He tell him that when he was analyzing the peom he found out that everything is new when you are young (pg 178 and 179)
Another example is when Ponyboy and Johnny were hiding away from the cops inside of a abandoned church and Ponyboy told Johnny and poem that he had learned but never knew the meaning of. This shows how Ponyboy and Johnny had a relationship which would later now the meaning because of johnny.