A great life story of a dedicated horse trainer

This is the inspirational story of a poor horse trainer. "Always follow your heart" has been the motto of this horse trainer since childhood.
As a child, Monty Roberts was the son of a horse trainer and went from stable to stable, ranch to ranch, training horses. The boy's studies were constantly interrupted. 
Once when he was in high school, a teacher asked him to write about what he wanted to be when he grew up. He didn't hesitate and wrote a seven-page article about his goal of becoming a horse breeder. It was a detailed paper with the location of buildings, stables and even a house plan. Two days later he received his newspaper back with an "F" on the front page. After class, he asked his teacher why he got such a low score. The teacher said to him: “This dream is unrealistic for a boy like you who has neither money nor resources and comes from a migrant family. There is no way to achieve this goal.” Then the teacher suggested that he rewrite the work with a more realistic attitude. 
The boy went home and asked his father what to say. His father said to him, "This is a very important decision, so you must come to your own conclusion." A few days later, the boy took the same paper to his teacher. No changes were made. He said to his teacher, "Hold the "F" and I will keep my dream." 
Monty Roberts became the owner of a 4,000 square foot home in the middle of a 500 acre horse ranch. He put the written paper inside and hung it over the fireplace. 
Always remember to follow your heart and never listen to those who don't believe in your ability to make your dreams come true.