“In regard, then, to the sacred tradition of humanity, we learn that it consists, not in propositions or statements which are to be accepted and believed on the authority of the tradition, but in questions rightly asked, in conceptions which enable us to ask further questions, and in methods of answering questions. The value of all these things depends on their being tested day by day.”
The Ethics of Belief (1877), The Weight Of Authority
Context: In regard, then, to the sacred tradition of humanity, we learn that it consists, not in propositions or statements which are to be accepted and believed on the authority of the tradition, but in questions rightly asked, in conceptions which enable us to ask further questions, and in methods of answering questions. The value of all these things depends on their being tested day by day. The very sacredness of the precious deposit imposes upon us the duty and the responsibility of testing it, of purifying and enlarging it to the utmost of our power. He who makes use of its results to stifle his own doubts, or to hamper the inquiry of others, is guilty of a sacrilege which centuries shall never be able to blot out. When the labours and questionings of honest and brave men shall have built up the fabric of known truth to a glory which we in this generation can neither hope for nor imagine, in that pure and holy temple he shall have no part nor lot, but his name and his works shall be cast out into the darkness of oblivion for ever.
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William Kingdon Clifford 48
English mathematician and philosopher 1845–1879Related quotes

On My Philosopy (1941)
Context: Our questions and answers are in part determined by the historical tradition in which we find ourselves. We apprehend truth from our own source within the historical tradition.
The content of our truth depends upon our appropriating the historical foundation. Our own power of generation lies in the rebirth of what has been handed down to us. If we do not wish to slip back, nothing must be forgotten; but if philosophising is to be genuine our thoughts must arise from our own source. Hence all appropriation of tradition proceeds from the intentness of our own life. The more determinedly I exist, as myself, within the conditions of the time, the more clearly I shall hear the language of the past, the nearer I shall feel the glow of its life.

http://www.guardian.co.uk/commentisfree/story/0,,1963337,00.html
The Guardian, 4 December 2006, When it comes to psychics, my stance is hardcore: they must die alone in windowless cells http://www.guardian.co.uk/commentisfree/story/0,,1963337,00.html
Guardian columns

Source: The Elegant Universe: Superstrings, Hidden Dimensions, and the Quest for the Ultimate Theory
Anatol Rapoport, "Modern Systems Theory – An Outlook for Coping with Change", paper given in the 1970 John Umstead Distinguished Lectures at North Carolina Department of Mental Health, Research Division, on 5 February 1970, and appeared in Revue Francaise de Sociologie, October 1969, p. 16
1970s and later

"Quotes", Anatomy of Criticism: Four Essays (1957), Polemical Introduction

As quoted in The Writer's Quotation Book : A Literary Companion (1980) by James Charlton, p. 44

Autobiographical Essay (2001)