Quote

Your right to swing your arm ends where the other person’s nose begins. ~ Voltaire

You can do as you please until it harms someone else. We as individuals do have restrictions in the United States, for instance, we cannot drink until our 21st birthday, so we do not have the absolute individual freedom outlined by Voltaire's theory. When we do negatively affect other people to the extent that we break the law, though, we surrender our rights to the government.

So to some extent we live in accordance to Voltaire's philosophy, only with less freedom.