This paper is about the question of power and its legitimacy, as well as the capacity of freedom to alter the powers. From Spinoza’s Deleuze reading we understand that we need ontological tools for addressing the issue of power in different terms than we typically use. Not only play on this issue the elements «power», «freedom» or «slavery» but also concepts like «potency» or «place» become necessary to take care of an issue which is relevant today as a centuries ago.