“[W]e’re skeptical that so-called "impeachment precedent" commands deference apart from its power to persuade future generations. Congress isn’t bound by its own prior decisions.”

Afroyim v. Rusk, 387 U.S. 267–68 (1967)

The Passion According to G.H. (1964), p. 169

On the weekly radio broadcast, "Texas Forum of the Air" (November 1, 1942); reported in Congressional Record (November 2, 1942), vol. 88, Appendix, p. A3866.

V. On the First Cause
On the Gods and the Cosmos
Context: Next in order comes knowledge of the first cause and the subsequent orders of the Gods, then the nature of the world, the essence of intellect and of soul, then providence, fate, and fortune, then to see virtue and formed from them, and from what possible source evil came into the world.
Each of these subjects needs many long discussions; but there is perhaps no harm in stating them briefly, so that a disciple may not be completely ignorant about them.
It is proper to the first cause to be one — for unity precedes multitude — and to surpass all things in power and goodness. Consequently all things must partake of it. For owing to its power nothing else can hinder it, and owing to its goodness it will not hold itself apart.
If the first cause were soul, all things would possess soul. If it were mind, all things would possess mind. If it were being, all things would partake of being. And seeing this quality in all things, some men have thought that it was being. Now if things simply were, without being good, this argument would be true, but if things that are are because of their goodness, and partake in the good, the first thing must needs be both beyond-being and good. It is strong evidence of this that noble souls despise being for the sake of the good, when they face death for their country or friends or for the sake of virtue. — After this inexpressible power come the orders of the Gods.

2000s
Source: The definition of high crimes and misdemeanors: Speech at Berne, Switzerland http://www.bafweb.com/60308scalia.wmv (2006).

Source: Stéphane Valeri (2021) cited in: " High Level Visit to IAEA Monaco Laboratories Highlights Nuclear Techniques to Protect People, the Ocean https://www.iaea.org/newscenter/news/high-level-visit-to-iaea-monaco-laboratories-highlights-nuclear-techniques-to-protect-people-the-ocean" in International Atomic Energy Agency, 4 March 2021.

On who should decide when to increase or decrease troop levels in Iraq
President Bush Discusses War on Terror, Economy with Associated General Contractors of America http://georgewbush-whitehouse.archives.gov/news/releases/2007/05/20070502-2.html (May 2, 2007)
2000s, 2007

"A mighty fall from a moral high ground", 2014

Eine neue wissenschaftliche Wahrheit pflegt sich nicht in der Weise durchzusetzen, daß ihre Gegner überzeugt werden und sich als belehrt erklären, sondern vielmehr dadurch, daß ihre Gegner allmählich aussterben und daß die heranwachsende Generation von vornherein mit der Wahrheit vertraut gemacht ist. … Eine neue große wissenschaftliche Idee pflegt sich nicht in der Weise durchzusetzen, daß ihre Gegner allmählich überzeugt und bekehrt werden — daß aus einem Saulus ein Paulus wird, ist eine große Seltenheit —, sondern vielmehr in der Weise, dass die Gegner allmählich aussterben und daß die heranwachsende Generation von vornherein mit der Idee vertraut gemacht wird. Auch hier heißt es wieder: Wer die Jugend hat, der hat die Zukunft.
Wissenschaftliche Selbstbiographie. Mit einem Bildnis und der von Max von Laue gehaltenen Traueransprache. Johann Ambrosius Barth Verlag (Leipzig 1948), p. 22, in Scientific Autobiography and Other Papers, (1949), as translated by F. Gaynor, pp. 33–34, 97 (as cited in T. S. Kuhn, The Structure of Scientific Revolutions). Translation revised by Eric Weinberger.