Human society is made up of different organizations, groups, companies, and the above organizations, groups, companies are many individuals, their division of labor cooperation, towards the target action, thereby giving impetus to the progressive development of the society. Life is like a play, the role of the play, your role choice, depends on your favorite. Ability can ascend, knowledge can learn. Directional orienteering) may be a bit weird for Chinese, but it has been popular in Europe and the United States for years, and activists need maps and compass to read terrain, topography, directions, etc., through unknown places, rich in content and full of fun. The significance of work to society and the development and progress of society are closely related to the selection tendency of members of each society. We've mentioned before that the main group of hackers is young people, and in fact it is. In the 21st century, it is hard to see the old hacker over thirty years old on the Internet: many hackers generally "disappear" on the Internet in the future. Where did these people go? Why did they go? Actually these are easy to understand, as the growth of the age and mental maturity, the curiosity of young gradually out of them, they begin to step into a stable stage, the physical strength and energy began to fall, how can no longer stay up late, do not know tired. For example, starting to have a family burden, to make a living and a career. Because of the hacker industry, there are only a few professional hackers, and many are amateurs. They spend a lot of time and energy without pay. So it's also natural to quit "quack" when they're older. Of course, there are a lot of people who have been interested in their hacking career for a lifetime. Some of the hackers may go on to become security experts, anti-hacker experts and continue to study technology in the future. There are also people who do things that have nothing to do with hackers. Most people overlook their landscaping when undertaking a project like redoing their residence. This is definitely an big mistake, for the reason that landscaping around your house can greatly affect your property?s value. However, landscaping doesn't need to become a huge financial investment. With somewhat planning and a few strategically placed garden fixtures, plants and shrubs, it is possible to turn your yard into an oasis.