The most important goal I've set for my business is to NEVER quit. The surest way to succeed is to try and try again until you do. For you will fail many times and if you quit then that's the end. But if you decide to learn from your mistakes and to improve your skills so that you better understand your weaknesses and capitalize on your strengths; then, you will find certain success. Never ever quit. Learning, growing, and earning comes in time.