“There are many more shining qualities in the mind of man, but there is none so useful as discretion”

The Usurpation Of Language (1910)
Context: Of all the media of expression employed by man (and let us never forget that they are many) none are so unstable, none so quick to change their meaning, as words. Even sculpture, architecture, painting, in their noblest works, speak differently under different conditions; but these arts are relatively immortal compared with speech.

Source: The Genteel Tradition in American Philosophy (1911), p. 64
Context: Because the peculiarity of man is that his machinery for reaction on external things has involved an imaginative transcript of these things, which is preserved and suspended in his fancy; and the interest and beauty of this inward landscape, rather than any fortunes that may await his body in the outer world, constitute his proper happiness. By their mind, its scope, quality, and temper, we estimate men, for by the mind only do we exist as men, and are more than so many storage-batteries for material energy. Let us therefore be frankly human. Let us be content to live in the mind.

Baldwin to the deputation at the end of July, 1936, as quoted in Baldwin : A Biography by Keith Middlemas and John Barnes (1969), p. 947, p. 955. <!-- Weidenfeld and Nicolson -->
1936
Context: We none of us know what is going on in that strange man's mind. We all know the German desire as he has come out with in his book [Mein Kampf] to move East, and if he moves East, I shall not break my heart, but that is another thing. I do not believe he wants to move West, because West would be a very difficult programme for him … If there is any fighting in Europe to be done, I should like to see the Bolsheviks and Nazis doing it.

"Political Correctness: Robert Bly and Philip Larkin" (1997)
Context: Larkin the man is separated from us historically by changes in the self. For his generation, you were what you were and that was that. It made you unswervable and adamantine. My father had this quality. I don't. None of us do. There are too many forces at work, there are too many fronts to cover.
Still, a price has to be paid for not caring what others think of you, and Larkin paid it. He couldn't change the cards he was dealt. What poor hands we hold, when we face each other honestly. His poems insist on this helplessness...

No. 225.
The Tatler (1711–1714)
Context: At the same time that I think discretion the most useful talent a man can be master of, I look upon cunning to be the accomplishment of little, mean, ungenerous minds. Discretion points out the noblest ends to us, and pursues the most proper and laudable methods of attaining them: cunning has only private selfish aims, and sticks at nothing which may make them succeed. Discretion has large and extended views, and, like a well-formed eye, commands a whole horizon: cunning is a kind of short-sightedness, that discovers the minutest objects which are near at hand, but is not able to discern things at a distance. Discretion the more it is discovered, gives a greater authority to the person who possesses it: cunning, when it is once detected, loses its force, and makes a man incapable of bringing about even those events which he might have done had he passed only for a plain man. Discretion is the perfection of reason, and a guide to us in all the duties of life: cunning is a kind of instinct, that only looks out after our immediate interest and welfare. Discretion is only found in men of strong sense and good understandings, cunning is often to be met with in brutes themselves, and in persons who are but the fewest removes from them.

Source: Empire novels (1950–1952), Pebble in the Sky (1950), Chapter 5 "The Involuntary Volunteer" (p. 57)

Dissenting, United States v. Wunderlich, 342 U.S. 98, 101 (1951)
Judicial opinions

Book III, line 167, p. 41
The Iliads of Homer, Prince of Poets (1611)

Source: Pebble in the Sky