Abstract
"Whenever a separation is made between liberty and justice, neither, in my opinion, is safe." (Edmund Burke). Defining justice and how achieve a just society depends on the conception we have of the notion of liberty and equality. These two elements are the core notions of political philosophy since political theorists have constructed their theories of justice from these two central concepts. This is also what argues Edmund Burke in this quotation. In his opinion, no distinction can be done between liberty and justice; no justice can be conceived without considering liberty. The idea of liberty has such appeal that its analysis preoccupies most of political philosophers in very different schools of thought from Libertarians, Liberals, Republicans, Feminists, Marxists or Anarchists, each of them claiming to be its true defender. It is a topic debated in philosophy since Ancient Greece. The first deep analysis is probably the one of Aristotle in The Nicomachean Ethics with the notion of "free will" or before then with Plato in The Republic searching to define liberty in metaphysic significance.
