1). the theme of nothing gold can stay is a clear personification of nature.
2). how?
he saying that everything, even the most wonderful things, will eventually fade and die no matter what it is
The theme nothing gold can stay is shown by the lines "so dawn goes down to day". These lines means that nothing is eternal its not going to last very long, this is important because the reader needs to understand the we are not going to live forever. this relates to the outsiders because like Johnny Cade, and Bob Sheldon pass away and its important to know nothing is eternal and that's how life works.
