Some useful information about practical principles for a KSR:

5 steps for mental well being from a study in the UK:

• Connect
• Be active
• Take notice
• Keep learning
• Give

This is evidence-based recommendations. I have not checked them myself, but should do sometime.

The Golden Rule:

• Treat others as you would like to be treated
• Corollary (Silver Rule): Do not treat others in ways you would not like to be treated

Karen Amstrong proposing a revival of the Golden Rule. This in turn resulted into the Charter for compassion

Also, I have not checked the evidence for the Golden Rule