 Once this conceptual apparatus is in place, Frankfurt contrasts different sorts of addicts to illustrate his concept of free will. Consider first the unwilling addict, who is someone that has both a first-order desire to take the drug, and a first-order desire not to take the drug. Crucially, however, the unwilling addict also has a second-order volition that her first-order desire to take the drug not be her will. This is the basis for her unwillingness. Regrettably, her irresistible addictive desire to take the drug constitutes her will. Next, consider the case of the willing addict. The willing addict, like the unwilling addict, has conflicting first-order desires as regards taking the drug to which she is addicted. But the willing addict, by way of a second-order volition, embraces her addictive first-order desire to take the drug. She wants to be as she is and act as she does.