“My friends are all broad-minded, and well educated, but we do not keep a record of our conversations. The reason for this is (1) we are too lazy, and do not aspire to fame; (2) to talk gives us pleasure, but to write would give trouble; (3) none of us would be able to read it again after our deaths, so why worry; (4) if we wrote something this year we should probably find it all wrong the next year.”

On initial reports that Asteroid 1997 XF₁₁ could be on a trajectory to hit the Earth in 2028; as quoted in "Man in the News; A Cheery Herald of Fear: Brian Geoffrey Marsden" in The New York Times (13 March 1998) http://query.nytimes.com/gst/fullpage.html?res=9401E2D91F30F930A25750C0A96E958260&sec=&spon=&pagewanted=all.

L’extrême plaisir que nous prenons à parler de nous-mêmes nous doit faire craindre de n’en donner guere à ceux qui nous écoutent.
Translation by E.H. Blackmore et. al., in Collected Maxims and Other Reflections, de La Rochefoucauld, Oxford University Press (2008) : ISBN 019162313X
Maxim 314
Reflections; or Sentences and Moral Maxims (1665–1678)

Variant translation by Lin Yutang: "When all my friends come together to my house, there are sixteen persons in all, but it is seldom that they all come. But except for rainy or stormy days, it is also seldom that none of them comes. Most of the days, we have six or seven persons in the house, and when they come, they do not immediately begin to think; they would take a sip when they feel like it and stop when they feel like it, for they regard the pleasure as consisting in the conversation, and not in the wine. We do not talk about court politics, not only because it lies outside our proper occupation, but also because at such a distance most of the news is based upon hearsay; hearsay news is mere rumour, and to discuss rumours would be a waste of our saliva. We also do not talk about people's faults, for people have no faults, and we should not malign them. We do not say things to shock people and no one is shocked; on the other hand, we do wish people to understand what we say, but people still don't understand what we say. For such things as we talk about lie in the depths of the human heart, and the people of the world are too busy to hear them." (The Importance of Living, 1937; pp. 218–219)
Preface to Water Margin

As quoted in "The Scoreboard" by Les Biederman, in The Pittsburgh Press (August 13, 1960), p. 6
Baseball-related, <big><big>1960s</big></big>

Charlie Rose interview, 3 Jun 2005 https://charlierose.com/videos/17574, quoted in An Old Eric Schmidt Interview Reveals Google’s End-Game For Search And Competition https://techcrunch.com/2013/01/04/an-old-eric-schmidt-interview-reveals-googles-end-game-for-search-and-competition/ by TechCrunch (4 Jan 2013).

Refuge Recovery (2014)

Variant: Simi? What was it you told me once about families?
We have three kinds of family. Those we are born to, those who are born to us, and those we let into our hearts.
Source: Bad Moon Rising

2010s, 2016, Letter to America's Enemies (2016)