The most significant line: “We cannot prohibit speech that some experience as offensive or injurious”:
Those who hold minority or unpopular views on campus are usually censured on the theory that the presentation of their views is a source of offense or even injury to others. The explicit statement that the university cannot prohibit speech on that ground implicitly recognizes that individuals on campus who cannot endure the presentation of opposing views have a problem that they need to address, if they are to continue in higher education. It is not the responsibility of the university to protect them from the debate that is the lifeblood of research and scholarship.
Note: An intellectual freedom statement will only make a difference at MIT if MIT continues to seek achievements that go beyond mere conformity to approved views.