I have an unbreakable rule that you and I probably share.

This unbreakable rule is so important that there are absolutely no circumstances in which I would even consider breaking it.

My unbreakable rule is when I am shopping at Walgreens, or any other store, I do not steal anything.

By already deciding not to take anything off the shelves and put it in my pocket without paying, I free myself from any internal debate about whether to pay for an item or to pocket it.

In trading, you need to establish certain rules that are,