Sean Russell quote: “There were no sounds of men, here; only the whisperings of the world of nature, which men often called silence.”

“Things whispered here, and the trees muttered with the wind and perhaps with other things. Men knew the place was old, old as the world, and they never made peace with it.”

C. J. Cherryh book The Dreamstone

The Dreamstone, Book One : The Gruagach, Ch. 1 : Of Fish and Fire
Arafel's Saga (1983)

“All the problems of the world could be settled easily if men were only willing to think. The trouble is that men very often resort to all sorts of devices in order not to think, because thinking is such hard work.”

Nicholas Murray Butler (1862–1947) American philosopher, diplomat, and educator

Attributed to Butler in: American Dental Association (1959) The Journal of the American Dental Association. Vol 59. p. 289

“All the problems of the world could be settled easily if men were only willing to think. The trouble is that men very often resort to all sorts of devices in order not to think, because thinking is such hard work.”

Tom Watson (1874–1956) American businessman

Actually a remark by Nicholas Murray Butler.
Quoted by Watson in comments about "Think" and attributed to Nicholas Murray Butler - IBM Archives: Comments on "THINK" - Transcript https://www-03.ibm.com/ibm/history/multimedia/think_trans.html
Misattributed
Source: American Dental Association (1959) The Journal of the American Dental Association. Vol 59. p. 289.

“And the sign said "The words of the prophets
Are written on the subway walls
And tenement halls
And whispered in the sound of silence"”

Paul Simon (1941) American musician, songwriter and producer

The Sound of Silence
Song lyrics, Wednesday Morning, 3 A.M. (1964)
Context: And the people bowed and prayed
To the neon god they made
And the sign flashed out its warning
In the words that it was forming
And the sign said "The words of the prophets
Are written on the subway walls
And tenement halls
And whispered in the sound of silence"

“A court is only as sound as its jury, and a jury is only as sound as the men who make it up.”

Harper Lee book To Kill a Mockingbird

Pt. 2, ch. 20
Atticus Finch
To Kill a Mockingbird (1962)
Context: I’m no idealist to believe firmly in the integrity of our courts and in the jury system — that is no ideal to me, it is a living, working reality. Gentlemen, a court is no better than each man of you sitting before me on this jury. A court is only as sound as its jury, and a jury is only as sound as the men who make it up.