What phrases did you hear as a newbie by the older techs

RayWohlfarth

The heat is in the tools kid This was told to me on a bitter cold job site next to the river and it was not true.

It's not a mistake until you walk away from it This I carried with me my entire career and still live by it now. I was a dopey first year apprentice and made a mistake. I told the journeyman what I did and he smiled told me the phrase.

Just curious what you heard