“It is the function of the intellect to discriminate between the true and the false—a distinction which is applicable to all objects of intellectual perception.”
Source: Guide for the Perplexed (c. 1190), Part I, p.36 (1881) Tr. Friedlander
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Maimónides 180
rabbi, physician, philosopher 1138–1204Related quotes

“The function of wisdom is to discriminate between good and evil.”

Source: Art As a Social System (2000), p. 5 as cited by Andrew E. McNamara (2010) "Visual acuity is not what it seems : on Ian Burn's 'Late' reflections". In: Ann Stephen (Ed.) Mirror Mirror http://sydney.edu.au/museums/pdfs/Art_Gallery/mirror_mirror_catalogue.pdf.
“[Functionalism is] a distinction between kinds of duties.”
Source: The Principles of Organization, 1947, p. 15

He who aspires and strives towards discipleship is in no way pledged to the same specific attitude and discipline as is the applicant for initiation, and he can, if he so choose, take as long as he desires in the treading of the Probationary Path. p. 192
Initiation, Human and Solar (1922)

Part 3, Ch. 13, § 3.
Source: On the subject the ideal subjects for a totalitarian authority. Source: The Origins of Totalitarianism, published in 1951. As quoted by Scroll Staff (December 04, 2017): Ideas in literature: Ten things Hannah Arendt said that are eerily relevant in today’s political times https://web.archive.org/web/20191001213756/https://scroll.in/article/856549/ten-things-hannah-arendt-said-that-are-eerily-relevant-in-todays-political-times. In: Scroll.in. Archived from the original https://scroll.in/article/856549/ten-things-hannah-arendt-said-that-are-eerily-relevant-in-todays-political-times on October 1, 2019.
Source: Leisure, the Basis of Culture (1948), Leisure, the Basis of Culture, p. 11

Context: One of my oldest crusades is against the distinction between thought and feeling... which is really the basis of all anti-intellectual views: the heart and the head, thinking and feeling, fantasy and judgment. We have more or less the same bodies, but very different kinds of thoughts. I believe that we think much more with the instruments provided by our culture than we do with our bodies, and hence the much greater diversity of thought in the world. Thinking is a form of feeling; feeling is a form of thinking.
"Susan Sontag: The Rolling Stone Interview" with Jonathan Cott (1978; published 4 October 1979)
J.G. Bennett (1973) "REACTIONS", Second Basic Course at Sherborne House, March 5th, 1973; cited on jgbennett.net, 2009