Brave New World/Brave New World Revisited- Aldous Huxley This one is another huge favorite of mine. I just re-read it for the first time in several years, and I had forgotten how shocking yet believable Huxley's vision of the future was. Definitely worth a re-visit if you haven't read it in a while.
"I want to know what passion is," she heard him saying. "I want to feel something strongly." "When the individual feels, the community reels," Lenina pronounced. "Well, why shouldn't it reel a bit?" ― Aldous Huxley, Brave New World