"The most important aspect of freedom of speech is freedom to learn. All education is a continuous dialogue - questions and answers that pursue every problem on the horizon. That is the essence of academic freedom."

Next Quote

By academic freedom I understand the right to search for truth and to publish and teach what one holds to be true. This right implies also a duty: one must not conceal any part of what on has recognized to be true. It is evident that any restriction on academic freedom acts in such a way as to hamper the dissemination of knowledge among the people and thereby impedes national judgment and action.

— Albert Einstein