”Man’s rights can be violated only by the use of physical force. It is only by means of physical force that one man can deprive another of his life, or enslave him, or rob him, or prevent him from pursuing his own goals, or compel him to act against his own rational judgment. The precondition of a civilized society is the barring of physical force from social relationships—thus establishing the principle that if men wish to deal with one another, they may do so only by means of reason: by discussion, persuasion and voluntary, uncoerced agreement.” — AYN RAND, The Nature of Government

In a political context, freedom has only one meaning — freedom from the initiation of physical force by others. By initiation is meant those who start the use of force to achieve their ends, i.e., a bank robber. Only the initiation of force can one stop one’s mind, rendering useless as a means of survival. Only by the initiation of force can one be prevented from speaking, or robbed of their possessions, or murdered. Only through the initiation of force can an individual’s rights be violated.