“Whoever says that a man can live the Christian life, while at the same time successfully participating in the present order of things, is either profound in the lack of knowledge, or else he deliberately lies.”

The Temple of the Golden Pavilion (1959).
Context: What transforms this world is — knowledge. Do you see what I mean? Nothing else can change anything in this world. Knowledge alone is capable of transforming the world, while at the same time leaving it exactly as it is. When you look at the world with knowledge, you realize that things are unchangeable and at the same time are constantly being transformed. You may ask what good it does us. Let's put it this way — human beings possess the weapon of knowledge in order to make life bearable. For animals such things aren't necessary. Animals don't need knowledge or anything of the sort to make life bearable. But human beings do need something, and with knowledge they can make the very intolerableness of life a weapon, though at the same time that intolerableness is not reduced in the slightest. That's all there is to it.

Such is the rule of honor.
Opening to 'Omerta', from the album Ashes Of The Wake
Lyrics

[Powderly, Terence, 'The Path I Trod: The Autobiography of Terence V. Powderly, 1940, Columbia University Press, 9781163178164, https://archive.org/stream/pathitrodautobio00powdrich, 46]

Source: The Alchemist

551-553
Fruits of Solitude (1682), Part I
Context: Did we believe a final Reckoning and Judgment; or did we think enough of what we do believe, we would allow more Love in Religion than we do; since Religion it self is nothing else but Love to God and Man. He that lives in Love lives in God, says the Beloved Disciple: And to be sure a Man can live no where better. It is most reasonable Men should value that Benefit, which is most durable. Now Tongues shall cease, and Prophecy fail, and Faith shall be consummated in Sight, and Hope in Enjoyment; but Love remains.

Source: The Root of the Righteous (1955), p. 39.

Source: Meditations (c. AD 121–180), Book III, 10

The New Economics for Industry, Government, Education (1993)

Ich sage ihnen vor Gott, als ein ehrlicher Mann, ihr Sohn ist der größte Componist, den ich von Person und den Nahmen nach kenne: er hat geschmack, und über das die größte Compositionswissenschaft.
Quoted in a letter from Leopold Mozart to Maria Anna Mozart (1785-02-16)