Justice Abe Fortas (majority): “It can hardly be argued that either students or teachers shed their constitutional rights to freedom of speech or expression at the schoolhouse gate…. The District Court concluded that the action of the school authorities was reasonable because it was based upon their fear of a disturbance from the wearing of the armbands. But, in our system, undifferentiated fear or apprehension of disturbance is not enough to overcome the right to freedom of expression. Any departure from absolute regimentation may cause trouble. Any variation from the majority’s opinion may inspire fear. Any word spoken, in class, in the lunchroom, or on the campus, that deviates from the views of another person may start an argument or cause a disturbance. But our Constitution says we must take this risk, and our history says that it is this sort of hazardous freedom—this kind of openness—that is the basis of our national strength and of the independence and vigor of Americans who grow up and live in this relatively permissive, often disputatious, society.
“In order for the State in the person of school officials to justify prohibition of a particular expression of opinion, it must be able to show that its action was caused by something more than a mere desire to avoid the discomfort and unpleasantness that always accompany an unpopular viewpoint. Certainly where there is no finding and no showing that engaging in the forbidden conduct would ‘materially and substantially interfere with the requirements of appropriate discipline in the operation of the school,’ the prohibition cannot be sustained.”
Justice Hugo Black (dissenting): “Even a casual reading of the record shows that this armband did divert students’ minds from their regular lessons, and that talk, comments, etc., made John Tinker ‘self-conscious’ in attending school with his armband. While the absence of obscene remarks or boisterous and loud disorder perhaps justifies the Court’s statement that the few armband students did not actually ‘disrupt’ the classwork, I think the record overwhelmingly shows that the armbands did exactly what the elected school officials and principals foresaw they would, that is, took the students’ minds off their classwork and diverted them to thoughts about the highly emotional subject of the Vietnam war. And I repeat that if the time has come when pupils of state-supported schools, kindergartens, grammar schools, or high schools, can defy and flout orders of school officials to keep their minds on their own schoolwork, it is the beginning of a new revolutionary era of permissiveness in this country fostered by the judiciary. The next logical step, it appears to me, would be to hold unconstitutional laws that bar pupils under 21 or 18 from voting, or from being elected members of the boards of education.”