" If you view life at 50 the same as you did at 20 - you have wasted 30 years of your life"
                                                                   Muhammad Ali:) 

I agree and disagree at the same time. I agree because that means that u didn't learn anything. But at the same time i disagree because if you view on life was to always look forward and never make regrets then you didn't waste 30 years for your life.