academic freedom

from The American Heritage® Dictionary of the English Language, 5th Edition.

• noun Liberty to teach, pursue, and discuss knowledge without restriction or interference, as by school or public officials.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

• noun The right to teach or learn freely without unreasonable interference from authority, or fear of reprisal.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

• noun the freedom of teachers and students to express their ideas in school without religious or political or institutional restrictions