“We none of us know what is going on in that strange man's mind.”

Testimony in The Public Television Act of 1967 : Hearings Before the Subcommittee on Communications, by the United States Congress, p. 167
Context: Our society is changing so rapidly that none of us can know what it is or where it is going. All of us who are mature feel that there are historic principles of behavior and morality, of things that we all believe in that are being lost, not because young people couldn't believe in them, but because there is no language for translating them into contemporary terms.
The search for that language, the search for the ways to tell young people what we know as we grow older — the permanent and wonderful things about life — will be one of the great functions of this system. We are losing this generation. We all know that. We need a way to get them back.

Source: The Bone House (2011), p. 183

No. 225.
The Tatler (1711–1714)
Context: There are many more shining qualities in the mind of man, but there is none so useful as discretion; it is this, indeed, which gives a value to all the rest, which sets them at work in their proper times and places, and turns them to the advantage of the person who is possessed of them. Without it, learning is pedantry, and wit impertinence; virtue itself looks like weakness; the best parts only qualify a man to be more sprightly in errors, and active to his own prejudice.

As quoted in The Early Years of the Saturday Club, 1855-1870 (1918) by Edward Waldo Emerson.

The Cloud Confines, reported in Bartlett's Familiar Quotations, 10th ed. (1919).

Source: Lonesome Traveler

Source: Boy Meets Boy

Part 3, Chapter 11 (p. 171)
Nifft the Lean (1982)

Source: The Goldfinch