To talk about the oldest sources of coaching, I suggest starting with a trip to Greece and going back in time about 2,400 years. We will be able to rise to the shoulders of such giants as Socrates, Plato, and Aristotle!
Although they did not use the word "coaching", their assumptions are consistent with the current coaching. Therefore, one can assume that it is in these philosophers that coaching has its deepest roots. Plato, Aristotle, and Socrates shared a common goal that is the same as the purpose of coaching: to live a life that is most worth living.
Plato believed that the search for a fulfilled life is very difficult to achieve alone. He said that it is much better to have "someone" - currently a trainer - who will help us become aware and develop habits that allow us to fulfill ourselves better. The Platonic concept of education - and nowadays coaching - is based more on receiving than giving knowledge. Everyone has a part of the truth in them, but in order to discover it, they need someone to help them.
According to Aristotle, true happiness is achieved when people develop all their abilities. Our goal in life is to strive for well-being through practice and the development of virtues, i.e. our values and patterns of behavior. Aristotle wrote that one thing is "what we are" and the other, completely different, what we can "become". Coachin