This is my favorite quote. I believe that this quote exhibit one of the key principle for success. It explains what I personally believe; it’s never too late to work for success and those choices are in your hands ready to be made!
Before Macbeth found out about his future, he just let fate control his life and wasn't really bothered by it. However, once Macbeth found out that his fate was to become the king, he took the situation directed it to the fate he was told about.