This process, this method necessary to man's survival and prosperity upon the earth, has often been derided as unduly or exclusively "materialistic." But it should be clear that what has happened in this activity proper to man's nature is a fusion of "spirit" and matter; man's mind, using the ideas it has learned, directs his energy in transforming and reshaping matter into ways to sustain and advance his wants and his life. Behind every "produced" good, behind every man-made transformation of natural resources, is an idea directing the effort, a manifestation of man's spirit.
Murray RothbardThe fundamental axiom, then, for the study of man is the existence of individual consciousness
Murray RothbardBriefly, the State is that organization in society which attempts to maintain a monopoly of the use of force and violence in a given territorial area; in particular, it is the only organization in society that obtains its revenue not by voluntary contribution or payment for services rendered but by coercion.
Murray Rothbard