“von Humboldt (seeing a newspaper containing slanderous falsehoods against Jefferson on the President's desk) : Why do you not have the fellow hung who dares to write these abominable lies?
Jefferson : What! hang the guardians of the public morals? No, sir, — rather would I protect the spirit of freedom which dictates even that degree of abuse. Put that paper into your pocket, my good friend, carry it with you to Europe, and when you hear any one doubt the reality of American freedom, show them that paper, and tell them where you found it.
Humboldt : But is it not shocking that virtuous characters should be defamed?
Jefferson : Let their actions refute such libels. Believe me, virtue is not long darkened by the clouds of calumny; and the temporary pain which it causes is infinitely overweighed by the safety it insures against degeneracy in the principles and conduct of public functionaries. When a man assumes a public trust, he should consider himself as public property.”

Speech to the National Press Club (14 September 1997)

Vincent Blasi, The First Amendment And The Ideal of Civic Courage: The Brandeis Opinion in Whitney v. California, 29 Wm. & Mary L. Rev. 653, 686 (1988).

Source: Modes and Morals (1920), Ch. 4

2010-, Living in Fear Is Worse Than Imprisonment, 2012

“I have nothing to say on any historical topic.”
Girl, Interrupted (1994)

2010s, Farewell Speech (2017)
Context: !-- So the young people here and the young people out there: --> Do not ever let anyone make you feel like you don't matter, or like you don't have a place in our American story — because you do. And you have a right to be exactly who you are.
But I also want to be very clear: This right isn't just handed to you. No, this right has to be earned every single day. You cannot take your freedoms for granted. Just like generations who have come before you, you have to do your part to preserve and protect those freedoms. And that starts right now, when you're young.
Right now, you need to be preparing yourself to add your voice to our national conversation. You need to prepare yourself to be informed and engaged as a citizen, to serve and to lead, to stand up for our proud American values and to honor them in your daily lives. And that means getting the best education possible so you can think critically, so you can express yourself clearly, so you can get a good job and support yourself and your family, so you can be a positive force in your communities.

Cabinet meeting (1841), as retold by John Alexander Tyler.

2014, Address to European Youth (March 2014)