In this oppressive era of hushed voices, furtive glances and underground resistance, it is little wonder that John Stuart Mill’s On Liberty has become an inspiration and a recourse for a new generation. Since its publication in 1859, Mill’s brief on behalf of liberty of speech, opinion, expression and action has become a rallying philosophy for those experiencing conditions of constraint, limitation, and oppression — whether political, social, religious, academic or interpersonal. A century and a half after his death, Mill’s argument on behalf of an “atmosphere of freedom”, limited only when words or actions result in harm, is the governing philosophy of the liberal order.