A well regulated militia, being necessary to the security of a free state, the right of the people to keep and bear arms when serving in the militia … - John Paul Stevens

On occasion, quite apart from any threat of persecution, an advocate may believe her ideas will be more persuasive if her readers are unaware of her identity. Anonymity thereby provides a way for a writer who may be personally unpopular to ensure that readers will not prejudge her message simply because they do not like its proponent.

All general business corporation statues appear to date from well after 1800.. The Framers thus took it as a given that corporations could be comprehensively regulated in the service of the public welfare. Unlike our colleagues, they had little trouble distinguishing corporations from human beings, and when they constitutionalized the right to free speech in the First Amendment, it was the free speech of individual Americans they had in mind.
The fact that corporations are different from human beings might seem to need no elaboration, except that the majority opinion almost completely elides it…. Unlike natural persons, corporations have ‘limited liability’ for their owners and managers, ‘perpetual life,’ separation of ownership and control, ‘and favorable treatment of the accumulation of assets….’ Unlike voters in U.S. elections, corporations may be foreign controlled.
...It might be added that corporations have no consciences, no beliefs, no feelings, no thoughts, no desires. Corporations help structure and facilitate the activities of human beings, to be sure, and their ‘personhood’ often serves as a useful legal fiction. But they are not themselves members of ‘We the People’ by whom and for whom our Constitution was established.

(TH: In Justice Stevens’ dissent in Citizens United, he pointed out that corporations in their modern form didn’t even exist when the Constitution was written in 1787 and got its first ten amendments in 1791, including the First which protects free speech)