1.: Decide what your commitment is to the sport, the horse and its life. Train and life inside your commitment and live by it.
2.: Accept to make mistakes. Every 'mistake' (or action) you make generates experience.
3.: Accept you can learn from everybody. Stay open for advice, input and other opinions. Just like humans horses aren't a fixed science. Different people learn to read different horses.
4.: Don't think to much. Be intelligent yes, but don't overdo it. Let your instincts guide your actions. Allow yourself to live in the 'moment'.
5.: Live your dream or chase it. Let no one stand in your way.
6.: As annoying, sweet, powerful, etc. they might be... respect every horse that crosses your path.
7.: Listen and accept your horse might know better. Communicate with your horse.
8.: Work to reach your goal, but don't judge your work by comparing it to that of others.
9.: Treat your horse like you want to be treated. Respect the animal on a daily base (by Marny Langer).
10.: It is the attitude (and commitment) that counts. Not the trainer, not the money, not the ...