“The seriousness of philosophy does not consist in giving men laws and telling them what the ideal city is in which they must live, but in constantly reminding them (those at least who wish to listen, since philosophy’s reality comes only from it being listened to), that the reality of philosophy is to be found in its practices, which are the practices of self on self and, at the same time, those practices of knowledge by which all the modes of knowledge, through which one rises and descends and which one rubs against each other, finally bring one face to face with the reality of Being itself.”
Michel Foucault, 2010, The Government of Self and Others. Lectures at the Collège de France 1982-1983, Picador.