A wise person is somebody with results, somebody who have gone through what he tells you. A wise person is somebody who doesn't follow the crowd, who has habits of success and then teaches them to people!.
A wise person is the one who makes every effort to learn when it is appropriate to take action, and take the action to bring positive change in their life and the lives of others. That same wise person will not waste their time or anyone else's time complaining about things that are out of control at that particular moment. Knowing how to distinguish between the two is true wisdom.