Libertarianism is a political philosophy that supports individual rights, private property rights, and free market capitalism.
Libertarians believe that as long as individuals do not initiate physical force, the threat of it, or fraud against another person or their property, they should be free to do with their own bodies and property as they see fit.
Thus, libertarians oppose government intervention in private affairs to forcibly prevent victimless crimes; if participation in an activity is consensual (i.e. not prompted by initiatory coercion or fraud), libertarians allow it.
As such, they support the legalization of drugs, gambling, and prostitution. Libertarians are also against censorship, prohibiting gang membership, mandating seatbelts, and taxing alcohol and tobacco.
They believe government should not only refrain from imposing restraints on non-violent action, but also refrain imposing any supposed positive moral obligation individuals.
For libertarians, government can legitimately intervene only to prevent coercion.
Libertarians apply nonaggression and self-ownership to everyone, but accept material inequality as a natural result of liberty.