"A man without a goal is like a ship without a rudder." 

In life we all have goals and some of us don't. We either want to be something in the future or specialize a career field. Going back to the statement a boat uses a rudder to move in what direction they are willing to move in. And in live without goals you don't do anything and don't go anywhere. For example if you want to be a doctor in the future then you have a rudder because you know in what direction you will head towards. But, if you don't have a goal then you aren't going nowhere. So you don't know where you are leading to like a boat without a rudder you don't know where you are going. You just go where the wind is blowing to and that relates to having no goals. Another goal is wanting to make a difference in life. In order to achieve that goal you would need a rudder. To have a rudder in life you will have to set your mind to something you want. And with a rudder you would be able to manage where you want to go in life.