Don't waste your energy on what you can't control, and shift your mindset to what you can!

To illustrate this approach and give readers an everyday tool, Steven Covey developed the concepts of „circle of influence“ and „circle of concern“. They have been expanded by adding the „circle of control.“

https://www.modern.works/blog/the-power-of-coveys-circle-of-concern-influence-and-control

— Steven Covey: „The 7 Habits of Highly Effective People“