The violent unease of today's world would have been all too familiar to Hannah Arendt. Tyranny, occupation, disenchantment, post-truth politics, conspiracy theories, racism, mass migration, the banality of evil: she had lived through them all.

The violent unease of today's world would have been all too familiar to Hannah Arendt. Tyranny, occupation, disenchantment, post-truth politics, conspiracy theories, racism, mass migration, the banality of evil: she had lived through them all.

Born in the first decade of the last century, Arendt escaped fascist Europe to make a new life for herself in America, where she became one of the world's most influential - and controversial - public intellectuals. She wrote about power and terror, exile and love, and above all about freedom. Questioning - thinking - was her first defence against tyranny. In place of the forces of darkness and insanity, she pitched a politics of plurality, spontaneity and defiance. Loving the world, Arendt taught, meant finding the courage to protect it.