Definition
A principle that suggests one should treat others with the same consideration and respect they themselves would desire.
If you want others to respect your opinion, you should respect theirs.
When I treat people with kindness and respect, I find they reciprocate in the same way, it's about doing as you would be done by.
In business negotiations, it's important to treat your counterparts fairly and honestly, embodying the principle of 'do as you would be done by.'