If a prince is adaptable, he will not be conquered. However, both nature and habits make it extremely difficult for people to change. A Prince must change his mode and proceedings as the times and affairs change. In my book, I use the example of a cautious and patient Prince whose government is successful. If things change and he continues to rule in the same way, he will come to ruin.
People naturally have difficulty making changes.
They are either accustomed to doing things a certain way and nature will make it so they cannot deviate, or they do not want to stray from a path that has proven successful before. This type of person is called a cautious man. This ability to change means that a ruler must be able to depart from good into bad. Prudence is needed to decide when that step is necessary. Aristotle, you teach that in order to be fully human one must be virtuous.