This quote means that you should take the time to do something right rather than just to do it. If you do something just to do then you will never achieve your goals. However if you take the time to take the extra step you can achieve anything you set your mind to.It also means that when you have a goal to never give up and to keep having it on your mind.The more you think of your goal then the more likey you will to achevie it. Also its saying that dont give up for something eles. You have to push your self to an extent that way you can acheive your goal.To focus on your future not what you want at the time .

''Don't sacrifice what you want most for what you want now.Write it down what you want most and see it often''-Peter Vidmar