If one can stick to the training throughout the many long years, then willpower is no longer a problem. It's raining? That doesn't matter. I am tired? That's beside the point. It's simply that I just have to.

Emil Zatopek

Don't dwell on what went wrong. Instead, focus on what to do next. Spend your energies on moving forward toward finding the answer.

Denis Waitley

I have always been one to encourage perseverance.

Christina Aguilera

People rarely succeed unless they have fun in what they are doing.

Dale Carnegie

Losers live in the past. Winners learn from the past and enjoy working in the present toward the future.

Denis Waitley

Be not afraid of going slowly. Be afraid only of standing still.

Chinese Proverb