If something is not worth doing, it's not worth doing well. -Murphy's Laws of Computers
My boss arrived at work in a brand-new Lamborghini. I said 'wow, that's an amazing car!', He replied 'If you work hard, put all your hours in and strive for excellence, I'll get another one next year.'
When a child learns to walk and falls down 50 times, he never thinks to himself: 'Maybe this isn't for me ?'. Where did you learn to quit ?