Socialism, Libertarianism, Communist, Anarchist, Capitalist, right wing, left wing, centre left wing, centre right wing, and so on.
They are all labels, for those who stopped evolving.
"Political tags - such as royalist, communist, democrat, populist, fascist, liberal, conservative, and so forth - are never basic criteria. The human race divides politically into those who want people to be controlled and those who have no such desire."
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"I am free, no matter what rules surround me. If I find them tolerable, I tolerate them; if I find them too obnoxious, I break them. I am free because I know that I alone am morally responsible for everything I do."
- Robert A. Heinlein