Never let your head hang down. Never give up and sit down and grieve. Find another way.
The difference between the impossible and the possible lies in a person's determination.
You are never really playing an opponent. You are playing yourself, your own highest standards, and when you reach your limits, that is real joy.
I hated every minute of training, but I said, 'Don't quit. Suffer now and live the rest of your life as a champion.'