At many colleges and universities what John Stuart Mill called “the tyranny of public opinion” does more than merely discourage students from dissenting from prevailing views on moral, political, and other types of questions. It leads them to suppose that dominant views are so obviously correct that only a bigot or a crank could question them.

Since no one wants to be, or be thought of as, a bigot or a crank, the easy, lazy way to proceed is simply by falling into line with campus orthodoxies.

Don’t do that. Think for yourself.

Thinking for yourself means questioning dominant ideas even when others insist on their being treated as unquestionable. It means deciding what one believes not by conforming to fashionable opinions, but by taking the trouble to learn and honestly consider the strongest arguments to be advanced on both or all sides of questions—including arguments for positions that others revile and want to stigmatize and against positions others seek to immunize from critical scrutiny.

The love of truth and the desire to attain it should motivate you to think for yourself.

From: Some Thoughts and Advice for Our Students and All Students