“When I say 'I will be true to you' I am drawing a quiet space beyond the reach of other desires.”

The Point of View of My Work as an Author (1848, 1851, 1859)<!-- Lowrie 1939, 1962 --> p. 153-155
1840s
Context: I have never fought in such a way as to say: I am the true Christian, others are not Christians. No, my contention has been this: I know what Christianity is, my imperfection as a Christian I myself fully recognize — but I know what Christianity is. And to get this properly recognized must be, I should think, to every man’s interest, whether he be a Christian or not, whether his intention is to accept Christianity or to reject it. But I have attacked no one as not being a Christian, I have condemned no one. Indeed, the pseudonym Johannes Climacus, who sets the problem ‘about becoming a Christian’, does exactly the opposite: he denies that he is a Christian and concedes this claim to the others — the remotest possible remove, surely, from condemning others! And I myself have from the first clearly asserted, again and again repeated, that I am ‘without authority’. My tactics were, by God’s aid, to employ every means to make it clear what the requirement of Christianity truly is — even though not one single person should be induced to enter into it, and though I myself might have to give up being a Christian (in which case I should have felt obliged to make open admission of the fact). On the other hand, my tactics were these: instead of giving the impression, in however small a degree, that there are such difficulties about Christianity that an apology for it is needed if men are to be persuaded to enter into it, rather to represent it as a thing so infinitely lofty, as in truth it is, that the apology belongs in another place, is required, that is to say, of us for the fact that we venture to call ourselves Christians, or it transforms itself into a contrite confession that we have God to thank if we merely assume to regard ourselves as a Christian. But neither must this ever be forgotten: Christianity is just as lenient as it is austere, just as lenient, that is to say, infinitely lenient. When the infinite requirement is heard and upheld, heard and upheld in all its infinitude, then grace is offered, or rather grace offers itself, and to it the individual, each for himself, as I also do, can flee for refuge.

This line was later paraphrased by John Lennon, in his song "Julia", on The Beatles (1968): "Half of what I say is meaningless, but I say it just to reach you, Julia."
Sand and Foam (1926)

In his letter to Theo, from Cuesmes, 24 September 1880 - original manuscript of letter no. 158 - at Van Gogh Museum, location Amsterdam - inv. no. b156 V/1962, http://vangoghletters.org/vg/letters/let158/letter.html
Van Gogh's copies (drawings) he made after the work of Rousseau have been lost
1880s, 1880
Context: First and foremost, the masterly etching, 'The bush', by Daubigny/Ruisdael. [ Daubigny's etching 'The bush', he made after Jacob van Ruisdael ].... I plan to do two drawings, either in sepia or something else, one of them after this etching [by Daubigny] — the other [etching, made] after T. Rousseau's 'The oven in Les Landes'. This latter sepia is already done — it's true — but if you compare it with Daubigny's etching, you'll understand that it becomes weak, even though the sepia drawing considered on its own may very well have a certain tone and sentiment. I have to go back to it and work on it again.... I couldn't tell you how happy I feel to have taken up drawing again. It had already been on my mind for a long time, but I always saw the thing as impossible and beyond my reach.

in a letter to Charles Morice (July 1901), from French Paintings and Painters from the Fourteenth Century to Post-Impressionism, ed. Gerd Muesham [Frederick Ungar, 1970, ISBN 0-8044-6521-5], p. 551
1890s - 1910s

Source: Autobiography of Mark Twain, Vol. 2 (2013), p. 115

Context: I do not say that I do not know whether this faith is true, or not. I say distinctly and clearly, that I know it is not true. I admit that I do not know whether there is any infinite personality or not, because I do not know that my mind is an absolute standard. But according to my mind, there is no such personality; and according to my mind, it is an infinite absurdity to suppose that there is such an infinite personality. But I do know something of human nature; I do know a little of the history of mankind; and I know enough to know that what is known as the Christian faith, is not true. I am perfectly satisfied, beyond all doubt and beyond all per-adventure, that all miracles are falsehoods. I know as well as I know that I live—that others live—that what you call your faith, is not true.

Light (1919), Ch. XXIII - Face To Face
Context: Against the window's still pallid sky I see her hair, silvered with a moonlike sheen, and her night-veiled face. Closely I look at the share of sublimity which she bears on it, and I reflect that I am infinitely attached to this woman, that it is not true to say she is of less moment to me because desire no longer throws me on her as it used to do. Is it habit? No, not only that. Everywhere habit exerts its gentle strength, perhaps between us two also. But there is more. There is not only the narrowness of rooms to bring us together. There is more, there is more! So I say to her:
"There's you."
"Me?" she says. "I'm nothing."
"Yes, you are everything, you're everything to me."

Source: 1946 - 1963, In conversation with Dora Vallier' (1954), p. 264

Source: Endymion