Two rules on writing.
Two friends are walking down the beach one day. Let's call them Tim and Tom. They got into an argument until Tim slapped Tom hard 'round the face.
Tom then wrote on the sand: "Tim slapped me today."
After things got settled, a horrible storm blew in. A branch of a tree broke and fell down fast, going to Tom's direction. Upon reflex, Tim pulled him out of the way just in the nick of time.
After the storm, Tom found a rock. He wrote: "Tim saved me today."
Curiousity befalling upon Tim, he asked, "Why did you write me slapping you on sand, and me saving you on rock?"
"Simple," Tom said. "Sand gets washed away by waves and wind. Rocks are stronger and more permanent."
So what are the two rules in writing?
1. Write the bad stuff on sand. The winds and waves are forgiving.
2. Write the good stuff on stone. It lasts.