That proposes a complex problem with a simple solution. All we have to do is convince humans to be complacent with their given place in society. Aldous Huxley solves this problem in Brave New World. On the surface, his book appears somewhat comical, but beneath its humorous outer shell, its message is quite dark. Huxley writes about a future, in which, a one-world government will rise to power, taking all of man's freedoms. The government's rulers of this world have realized that using force and fear build up resentment in the ranks. However, subconscious persuasion, and mind-altering drugs, combined with genetic engineering and conditioning produce no negative side effects. There are other physical advantages to these techniques as well.
Genetic engineering is used to prevent all disease, and make humans with perfect physical condition. Different members of society are engineered for different purposes and trades. The population is easier to manage through this process by taking away one's individuality. In addition to genetic engineering, all members of Huxley's society are socially conditioned from birth. This social conditioning determines how a person will think, and what their occupation will be. They are taught only what they need to know to become productive members of society, and to never yearn for a life different from their own. .
Through the genetic engineering and social conditioning, people would be programmed to be satisfied with themselves. With everyone content with their place in life, people would not have the desire to want what they don't have. This would result in the end of all crime, making the utopia a safe place to live. Also, through the genetic engineering, people would be immune to all diseases, allowing people to live a longer, healthier life. They would be given only what they need, and nothing more. People would be taught not to dwell on negative things, but always look forward to the positive.