“The Great Books show … that even those thinkers of the past who are now often looked upon as the most reactionary, the medieval theologians, insisted, as Aristotle had before them, that the truth of any statement is its conformity to reality or fact, and that sense experience is required to discover the particular matters of fact that test the truth of general statements about the nature of things.”
Great Books: The Foundation of a Liberal Education (1954)
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Robert Maynard Hutchins 38
philosopher and university president 1899–1977Related quotes

Source: The Principles of Science: A Treatise on Logic and Scientific Method (1874) Vol. 1, p. 14

SGU, Podcast #78 – January 15th, 2007 http://www.theskepticsguide.org/podcast/sgu/78
The Skeptics' Guide to the Universe, Podcast, 2000s

Letter 21 (73) to Henry Oldenburg, November (1675)
Variant translation: The eternal wisdom of God … has shown itself forth in all things, but chiefly in the mind of man, and most of all in Jesus Christ.
Context: I do not think it necessary for salvation to know Christ according to the flesh : but with regard to the Eternal Son of God, that is the Eternal Wisdom of God, which has manifested itself in all things and especially in the human mind, and above all in Christ Jesus, the case is far otherwise. For without this no one can come to a state of blessedness, inasmuch as it alone teaches, what is true or false, good or evil. And, inasmuch as this wisdom was made especially manifest through Jesus Christ, as I have said, his disciples preached it, in so far as it was revealed to them through him, and thus showed that they could rejoice in that spirit of Christ more than the rest of mankind. The doctrines added by certain churches, such as that God took upon himself human nature, I have expressly said that I do not understand; in fact, to speak the truth, they seem to me no less absurd than would a statement, that a circle had taken upon itself the nature of a square. This I think will be sufficient explanation of my opinions concerning the three points mentioned. Whether it will be satisfactory to Christians you will know better than I.
Source: Carnap’s intellectual biography (1963), p. 25 as cited in: M. J. Cresswell (2010) " Carnap's logic http://apacentral.org/necessity/Cresswell_Carnap.pdf"
Source: Mind and Nature, a necessary unity, 1988, p. 29

Theories should be accredited, Aristotle insists, "only if what they affirm agrees with the facts."
Great Books: The Foundation of a Liberal Education (1954)
Knowing Yourself: The True in the False (1996)
Methods of Mathematics Applied to Calculus, Probability, and Statistics (1985)