What can universities do to protect academic freedom?

The freedom to teach, research and express ideas without censorship or unreasonable interference is a central tenet of the modern university. As pillars of democracy, higher education institutions should aim to embed this idea into all their activities, from how they are run to what their students read. But academic freedom is under threat from politicisation, polarisation and policing of certain views, forcing universities and colleges to reassert their commitment to this guiding principle. Here, academics from around the world explore how to keep the flame of free thought and enquiry alight in the classroom, in research and beyond.