But I think that the greatest obstacles to education for an open society are our own ignorance of how little we know, and our own unwillingness to acknowledge it even to ourselves.
So, instilling scepticism and the critical attitude in ourselves and in our students will not be enough. We will also need to instill the self-critical attitude in ourselves and in our students. And we will need to reverse the contemporary wisdom that says that ignorance is bad, but admitting it is stupid. This is perhaps the greatest obstacle to education that I know. It infects all levels of society, and especially the professorial ranks of academia.