Abstract
The philosophy of Plotino represents, with respect to Parménides -although in dependency of him-, a new way to think the relations between Unity and Thought. Whereas Parménides maintains that being is the only object adapted to thought, Plotino considers that it is not possible to think without the distinction between intelligible contents. Consequently, thinking cannot be the highest. But, although in this sense he surpasses to Parménides, his forgetfulness of some Aristotelian contributions prevents him to extract all potentialities contained in his discovery.