English Idiom: Written in stone
When we say that something is written in stone, we mean that it’s permanent or challenging if not impossible to change. When you sign a contract for a bank loan, for example, it is complicated to break or get out of that contract.
It is also very often used in the negative. You may be in contract negations with your client, and make an initial proposal to them. During the discussion, you could remind them that it is an initial proposal only and nothing is written in stone, yet.
Just remember everyone that although we may say that something is written in stone, it’s only an idiom.
The future is in constant flux and nothing is permanent. If you want to change anything about your life to make it better, it’s possible to do that.
Don’t assume it’s going to be easy; I only said it was possible.