“Not one word is said here of acausality, wave mechanics, indeterminacy relations, complementarity, … etc. Why doesn’t he talk about what he knows instead of trespassing on the professional philosopher’s preserves? Ne sutor supra crepidam. On this I can cheerfully justify myself: because I do not think that these things have as much connection as is currently supposed with a philosophical view of the world.”

After being played a portion of an audiotape where L. Ron Hubbard describes the Xenu story — Scientology Leader Gave ABC First-Ever Interview: David Miscavige, Scientology Leader and Best Man at Tom Cruise's Wedding, Spoke to ABC News' 'Nightline' in 1992, ABC News, November 18, 2006, 2010-07-03 http://abcnews.go.com/print?id=2664713,.

Preface to Second Edition (1843)
The Essence of Christianity (1841)

Source: Time and Again (1951), Chapter XXIV (p. 124)

Since "the answers of the special sciences" do not reach "the horizon of total reality", they are given "without having to speak at the same time of 'God and the world.'" (p. 96)
Source: Leisure, the Basis of Culture (1948), The Philosophical Act, p. 95

Un philosophe digne de ce nom n'a jamais dit qu'une seule chose : encore a-t-il plutôt cherché à la dire qu'il ne l'a dite véritablement. Et il n'a dit qu'une seule chose parce qu'il n'a su qu'un seul point : encore fut-ce moins une vision qu'un contact...
"L’intuition philosophique (Philosophical Intuition)" http://obvil.paris-sorbonne.fr/corpus/critique/bergson_pensee/body-5 (10 April 1911); translated by Mabelle L. Andison in: Henri Bergson, The Creative Mind: An Introduction to Metaphysics, Courier Dover Publications, 2012, p. 91

Article on Philosophy, Vol. 25, p. 667, as quoted in Main Currents of Western Thought : Readings in Western European Intellectual History from the Middle Ages to the Present (1978) by Franklin Le Van Baumer
Variant translation: Reason is to the philosopher what grace is to the Christian. Grace moves the Christian to act, reason moves the philosopher. Other men walk in darkness; the philosopher, who has the same passions, acts only after reflection; he walks through the night, but it is preceded by a torch. The philosopher forms his principles on an infinity of particular observations. … He does not confuse truth with plausibility; he takes for truth what is true, for forgery what is false, for doubtful what is doubtful, and probable what is probable. … The philosophical spirit is thus a spirit of observation and accuracy.
L'Encyclopédie (1751-1766)
Context: Reason is to the philosopher what grace is to the Christian.
Grace causes the Christian to act, reason the philosopher. Other men are carried away by their passions, their actions not being preceded by reflection: these are the men who walk in darkness. On the other hand, the philosopher, even in his passions, acts only after reflection; he walks in the dark, but by a torch.
The philosopher forms his principles from an infinity of particular observations. Most people adopt principles without thinking of the observations that have produced them, they believe the maxims exist, so to speak, by themselves. But the philosopher takes maxims from their source; he examines their origin; he knows their proper value, and he makes use of them only in so far as they suit him.
Truth is not for the philosopher a mistress who corrupts his imagination and whom he believes to be found everywhere; he contents himself with being able to unravel it where he can perceive it. He does not confound it with probability; he takes for true what is true, for false what is false, for doubtful what is doubtful, and probable what is only probable. He does more, and here you have a great perfection of the philosopher: when he has no reason by which to judge, he knows how to live in suspension of judgment...
The philosophical spirit is, then, a spirit of observation and exactness, which relates everything to true principles...

In his letter to Theo, The Hague, 11 March 1883, http://www.webexhibits.org/vangogh/letter/12/274.htm?qp=art.material,as translated by Johanna van Gogh-Bonger, edited by Robert Harrison, in The Complete Letters of Vincent van Gogh (1991)
1880s, 1883
Context: It constantly remains a source of disappointment to me that my drawings are not yet what I want them to be. The difficulties are indeed numerous and great, and cannot be overcome at once. To make progress is a kind of miner’s work; it doesn’t advance as quickly as one would like, and as others also expect, but as one stands before such a task, the basic necessities are patience and faithfulness. In fact, I do not think much about the difficulties, because if one thought of them too much one would get stunned or disturbed.
A weaver who has to direct and to interweave a great many little threads has no time to philosophize about it, but rather he is so absorbed in his work that he doesn’t think but acts, and he feels how things must go more than he can explain it. Even though neither you nor I, in talking together, would come to any definite plans, etc., perhaps we might mutually strengthen that feeling that something is ripening within us. And that is what I should like.

Source: Magids Series, The Merlin Conspiracy (2003), p. 113.