the state may not use its coercive apparatus for the purpose of getting some citizens to aid others, or in order to prohibit activities to people for… - Robert Nozick

Whatever arises from a just situation by just steps is itself just.

Taxation of earnings from labor is on a par with forced labor. Seizing the results of someone's labor is equivalent to seizing hours from him and directing him to carry on various activities.

In a free system any large, popular, revolutionary movement should be able to bring about its ends by such a voluntary process. As more and more people see how it works more and more will wish to participate in or support it. And so it will grow, without being necessary to force everyone or a majority or anyone into the pattern.