Taking its inspiration from the name of the recent "#FeesMustFall" movement on South African university campuses, this paper takes stock of the apparent disrepute into which truth, facts and also rationality have fallen in recent times. In the post-truth world, the blurring of borders between truth and deception, truthfulness and dishonesty, and non-fiction and fiction has become a habit--and also an educational challenge. I argue that truth matters, in education as elsewhere, and in ways not often acknowledged by constructivist, postmodernist and postcolonialist positions.