"The courts' decision in each case cannot be allowed to depend on the courts' opinion of the merits of the views or motives of the public authority. If that were to be the law, the individual's freedom of speech and conscience would be a freedom to speak and act only as judges think right...it must follow that if this decision of the council is lawful all other decisions to penalise those who do not publicly agree with the majority view would also have to be held valid."