You can spend all day trying to think of some universal truth to set down on paper, and some poets try that. Shakespeare knew that it's much easier t… - Mark Forsyth

John Ronald Reuel Tolkien wrote his first story aged seven. It was about a “green great dragon.” He showed it to his mother who told him that you absolutely couldn’t have a green great dragon, and that it had to be a great green one instead. Tolkien was so disheartened that he never wrote another story for years.
The reason for Tolkien’s mistake, since you ask, is that adjectives in English absolutely have to be in this order: opinion-size-age-shape-colour-origin-material-purpose Noun. So you can have a lovely little old rectangular green French silver whittling knife. But if you mess with that word order in the slightest you’ll sound like a maniac. It’s an odd thing that every English speaker uses that list, but almost none of us could write it out. And as size comes before colour, green great dragons can’t exist.

A poet is not somebody who has great thoughts. That is the menial duty of the philosopher. A poet is somebody who expresses his thoughts, however commonplace they may be, exquisitely. That is the one and only difference between the poet and everybody else.

A dutiful son has to remember not to slouch or swear or, in Hamlet's case, murder the old bat.