“As for acquiescing in what a man understands not, or cannot reconcile to his reason, they know best the fruits of it that practice it. For my part, I'm a stranger to it, and cannot reconcile myself to such a principle. On the contrary, I am pretty sure he pretends in vain to convince the judgment, who explains not the nature of the thing. A man may give his verbal assent to he knows not what, out of fear, superstition, indifference, interest, and the like feeble and unfair motives: but as long as he conceives not what he believes, he cannot sincerely acquiesce in it, and remains deprived of all solid satisfaction. … But he that comprehends a thing, is as sure of it as if he were himself the author.”
Christianity not Mysterious (1696), Section II: That the Doctrines of the Gospel are not contrary to Reason, Chapter 1
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John Toland 12
Irish philosopher 1670–1722Related quotes
Book 4, § 44.
Life of Apollonius of Tyana

Arp wrote this in lowercase letters
Notes From a Dada Diary; published, 1932 in 'Transition magazine'; as quoted (in lowercase letters), “Soby, James Thrall. Arp: The Museum of Modern Art. Doubleday, New York, 1958, Print. p. 17
1930s

“No man is so dangerous as the man who cannot decide what he fears.”
Source: Royal Assassin

Pupils at Sais (1799)
Context: The waking man looks without fear at this offspring of his lawless Imagination; for he knows that they are but vain Spectres of his weakness. He feels himself lord of the world: his me hovers victorious over the Abyss; and will through Eternities hover aloft above that endless Vicissitude. Harmony is what his spirit strives to promulgate, to extend. He will even to infinitude grow more and more harmonious with himself and with his Creation; and at every step behold the all-efficiency of a high moral Order in the Universe, and what is purest of his Me come forth into brighter and brighter clearness. This significance of the World is Reason; for her sake is the World here; and when it is grown to be the arena of a childlike, expanding Reason, it will one day become the divine Image of her Activity, the scene of a genuine Church. Till then let man honour Nature as the Emblem of his own Spirit; the Emblem ennobling itself, along with him, to unlimited degrees. Let him, therefore, who would arrive at knowledge of Nature, train his moral sense, let him act and conceive in accordance with the noble Essence of his Soul; and as if of herself Nature will become open to him. Moral Action is that great and only Experiment, in which all riddles of the most manifold appearances explain themselves. Whoso understands it, and in rigid sequence of Thought can lay it open, is forever master of Nature.

Source: The Doctrine of the Mean

Talking to reporters about whether President Bush knows about equipment inadequacies in Iraq http://www.defenselink.mil/Transcripts/Transcript.aspx?TranscriptID=1985
2000s