You have to believe in yourself when no one else does. That makes you a winner right there.
Don't measure yourself by what you have accomplished, but by what you should have accomplished with your ability.
The difference between a successful person and others is not a lack of strength, not a lack of knowledge, but rather a lack in will.
The most important thing in the Olympic Games is not winning but taking part; the essential thing in life is not conquering but fighting well.
Success is no accident. It is hard work, perseverance, learning, studying, sacrifice, and most of all, love of what you are doing or learning to do.
It's not the will to win that matters—everyone has that. It's the will to prepare to win that matters.