You have to train your brain to be positive just like you work out your body.
Whatever you train, you change your brain.
I always tell beginning runners: Train your brain first. It's much more important than your heart or legs.
Remember the mind is your best muscle...BIG ARMS can move rocks, but BIG WORDS can move mountains... Ride the brain train for success....
Chess is like body-building. If you train every day, you stay in top shape. It is the same with your brain - chess is a matter of daily training.
Brain: an apparatus with which we think we think.
I was the conductor of the Underground Railroad for eight years, and I can say what most conductors can't say; I never ran my train off the track and I never lost a passenger.
Your mind is nirvana.