“Reason has, especially today, many other manifestations than philosophical ones.”

Source: Nationalism and Culture (1937), Ch. 15 "Nationalism — A Political Religion"
Context: The growth of technology at the expense of human personality, and especially the fatalistic submission with which the great majority surrender to this condition, is the reason why the desire for freedom is less alive among men today and has with many of them given place completely to a desire for economic security. This phenomenon need not appear so strange, for our whole evolution has reached a stage where nearly every man is either ruler or ruled; sometimes he is both. By this the attitude of dependence has been greatly strengthened, for a truly free man does not like to play the part of either the ruler or the ruled. He is, above all, concerned with making his inner values and personal powers effective in a way as to permit him to use his own judgment in all affairs and to be independent in action. Constant tutelage of our acting and thinking has made us weak and irresponsible; hence, the continued cry for the strong man who is to put an end to our distress. This call for a dictator is not a sign of strength, but a proof of inner lack of assurance and of weakness, even though those who utter it earnestly try to give themselves the appearance of resolution. What man most lacks he most desires. When one feels himself weak he seeks salvation from another's strength; when one is cowardly or too timid to move one's own hands for the forging of one's fate, one entrusts it to another. How right was Seume when he said: "The nation which can only be saved by one man and wants to be saved that way deserves a whipping!"

Part 4, Section 7
A Treatise of Human Nature (1739-40), Book 1: Of the understanding
Context: This deficiency in our ideas is not, indeed, perceived in common life, nor are we sensible, that in the most usual conjunctions of cause and effect we are as ignorant of the ultimate principle, which binds them together, as in the most unusual and extraordinary. But this proceeds merely from an illusion of the imagination; and the question is, how far we ought to yield to these illusions. This question is very difficult, and reduces us to a very dangerous dilemma, whichever way we answer it. For if we assent to every trivial suggestion of the fancy; beside that these suggestions are often contrary to each other; they lead us into such errors, absurdities, and obscurities, that we must at last become asham'd of our credulity. Nothing is more dangerous to reason than the flights of the imagination, and nothing has been the occasion of more mistakes among philosophers. Men of bright fancies may in this respect be compar'd to those angels, whom the scripture represents as covering their eyes with their wings. This has already appear'd in so many instances, that we may spare ourselves the trouble of enlarging upon it any farther.

[L]e philosophe n'a jamais tué de prêtres et le prêtre a tué beaucoup de philosophes...
Observations on the Drawing Up of Laws (1774)
Source: Political Writings

Variants: One of the schools in Tlön has reached the point of denying time. It reasons that the present is undefined, that the future has no other reality than as present hope, that past is no more than present memory . . . Another maintains that the universe is comparable to those code systems in which not all the symbols have meaning, and in which only that which happens every three hundredth night is true...
The history of the universe... is the handwriting produced by a minor god in order to communicate with a demon.
Tlön, Uqbar, Orbis Tertius (1940)
Context: One of the schools of Tlön goes so far as to negate time; it reasons that the present is indefinite, that the future has no reality other than as a present hope, that the past has no reality other than as a present memory. Another school declares that all time has already transpired and that our life is only the crepuscular and no doubt falsified an mutilated memory or reflection of an irrecoverable process. Another, that the history of the universe — and in it our lives and the most tenuous detail of our lives — is the scripture produced by a subordinate god in order to communicate with a demon. Another, that the universe is comparable to those cryptographs in which not all the symbols are valid and that only what happens every three hundred nights is true. Another, that while we sleep here, we are awake elsewhere and that in this way every man is two men.

Less than Angels (1955), chapter 9

Source: The Crisis of the Modern World (1927), p. 56

Steven Nadler, in article Baruch Spinoza, Stanford Encyclopedia of Philosophy (First published Jun 29, 2001; substantive revision Jul 4, 2016)
M - R, Steven Nadler

Phaedo
Plato, Phaedo

The Righteous Mind (2012)