I am a fan of Canadian astronaut, Col. Chris Hadfield.  I highly recommend his book, An Astronaut's Guide to Life on Earth.  His thoughts on the transition from hot shot jet pilot to the lowest plebe in the astronaut program could well be applied to dressage:

"It's not enough to shelve your own competitive streak.  You have to try, consciously, to help others succeed.  Some people feel this is like shooting themselves in the foot--why aid someone else in creating a competitive advantage?  I don't look at it that way.  Helping someone else look good doesn't make me look worse.  In fact, it often improves my own performance, particularly in stressful situations.”

Submitted by Alice E Martin