From the Free Republic:
A right must be exercised through your own initiative and action. It is not a claim on others. A right is not actualized and implemented by the actions of others. This means you do not have the right to the time in another person’s life. You do not have a right to other people’s money. You do not have the right to another person’s property. If you wish to acquire some money from another person, you must earn it—then you have a right to it. If you wish to gain some benefit from the time of another person’s life, you must gain it through the voluntary cooperation of that individual—not through coercion. If you wish to possess some item of property of another individual, you must buy it on terms acceptable to the owner—not gain it through theft.