“As the situation continues to unfold, our first concern is preventing injury or loss of life. So I want to be very clear in calling upon the Egyptian authorities to refrain from any violence against peaceful protestors.
The people of Egypt have rights that are universal. That includes the right to peaceful assembly and association, the right to free speech, and the ability to determine their own destiny.  These are human rights. And the United States will stand up for them everywhere.”

2011, Remarks on Egyptian protests (January 2011)
Context: Around the world governments have an obligation to respond to their citizens.  That's true here in the United States; that's true in Asia; it is true in Europe; it is true in Africa; and it’s certainly true in the Arab world, where a new generation of citizens has the right to be heard.
When I was in Cairo, shortly after I was elected President, I said that all governments must maintain power through consent, not coercion. That is the single standard by which the people of Egypt will achieve the future they deserve.
Surely there will be difficult days to come. But the United States will continue to stand up for the rights of the Egyptian people and work with their government in pursuit of a future that is more just, more free, and more hopeful.

1960s, The American Promise (1965)
Context: We must preserve the right of free speech and the right of free assembly. But the right of free speech does not carry with it, as has been said, the right to holler fire in a crowded theater. We must preserve the right to free assembly, but free assembly does not carry with it the right to block public thoroughfares to traffic. We do have a right to protest, and a right to march under conditions that do not infringe the constitutional rights of our neighbors. And I intend to protect all those rights as long as I am permitted to serve in this office. We will guard against violence, knowing it strikes from our hands the very weapons which we seek — progress, obedience to law, and belief in American values.

International Journalism Festival http://www.journalismfestival.com/news/heather-brooke-antitrust-legislation-needed-to-keep-the-internet-free/ Interview with Fabio Chiusi, 12 April 2012.
Attributed, In the Media

Quotes 1990s, 1995–1999, The Common Good (1998)

Reference note: See The Federalist No. 51 (James Madison); The Federalist No. 69 (Alexander Hamilton); 1 Alexis de Tocqueville, Democracy in America 115–18...
Committee on the Judiary, United States House of Representatives, Plaintiff, v. Donald F. McGahn II, Defendant. (Nov 25, 2019)

Letter Accepting 2018 Andrei Sakharov Prizefrom (2018)

Charles Evans Hughes, De Jonge v. Oregon, 299 U.S. 353, 365 (1937).
Judicial opinions
Context: Freedom of speech and of the press are fundamental rights which are safeguarded by the due process clause of the Fourteenth Amendment of the Federal Constitution. [... ] The right of peaceable assembly is a right cognate to those of free speech and free press, and is equally fundamental. As this Court said in United States v. Cruikshank, 92 U. S. 542, 552: The very idea of a government, republican in form, implies a right on the part of its citizens to meet peaceably for consultation in respect to public affairs and to petition for a redress of grievances. The First Amendment of the Federal Constitution expressly guarantees that right against abridgment by Congress. But explicit mention there does not argue exclusion elsewhere. For the right is one that cannot be denied without violating those fundamental principles of liberty and justice which lie at the base of all civil and political institutions — principles which the Fourteenth Amendment embodies in the general terms of its due process clause. [... ] These rights may be abused by using speech or press or assembly in order to incite to violence and crime. The people, through their legislatures may protect themselves against that abuse. But the legislative intervention, can find constitutional justification only by dealing with the abuse. The rights themselves must not be curtailed. The greater the importance of safeguarding the community from incitements to the overthrow of our institutions by force and violence, the more imperative is the need to preserve inviolate the constitutional rights of free speech, free press and free assembly in order to maintain the opportunity for free political discussion, to the end that government may be responsive to the will of the people and that changes, if desired, may be obtained by peaceful means. Therein lies the security of the Republic, the very foundation of constitutional government.

In Quest of Democracy (1991)

Report of the Independent Expert on the promotion of a democratic and equitable international order on the right of self determination http://www.ohchr.org/EN/Issues/IntOrder/Pages/Reports.aspx.
2015, Report submitted to the UN General Assembly