Source: The Walking Drum (1984), Ch. 25
Context: I am merely a seeker after knowledge, taking the world for my province, for it seems all knowledge is interrelated, and each science is dependent to some extent on the others. We study the stars that we may know more about our earth, and herbs that we may know medicine better.
“Other sciences are suited to the various conditions of life: some, more necessary to some; other, to others. But this [science of self-knowledge] equally concerns every one.”
A Treatise on Self-Knowledge (1745)
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John Mason 7
English Independent minister and author 1706–1763Related quotes

1920s, Sidelights on Relativity (1922)

Source: Gooyanews website, 2010 http://news.gooya.com/politics/archives/2010/03/102134.php

Source: The Rise & Fall of Society (1959), p. 77

Source: Opus Tertium, c. 1267, Ch. 14 as quoted in J. H. Bridges, The 'Opus Majus' of Roger Bacon (1900) Vol.1 http://books.google.com/books?id=6F0XAQAAMAAJ Preface pp.x-xi
Context: All these foregoing sciences are, properly speaking, speculative. There is indeed in every science a practical side, as Avicenna teaches in the first book of his Art of Medicine. Nevertheless, of Moral Philosophy alone can it be said that it is in the special and autonomatic sense practical, dealing as it does with human conduct with reference to virtue and vice, beatitude and misery. All other sciences are called speculative: they are not concerned with the deeds of the present or future life affecting man's salvation or damnation. All procedures of art and of nature are directed to these moral actions, and exist on account of them. They are of no account except in that they help forward right action. Thus practical and operative sciences, as experimental alchemy and the rest, are regarded as speculative in reference to the operations with which moral or political science is concerned. This science is the mistress of every department of philosophy. It employs and controls them for the advantage of states and kingdoms. It directs the choice of men who are to study in sciences and arts for the common good. It orders all members of the state or kingdom so that none shall remain without his proper work.

Variant: All animals are equal, but some animals are more equal than others.
Source: Animal Farm

In science, this change has been manifested by a gradual transition from the traditional view, which insists that uncertainty is undesirable in science and should be avoided by all possible means, to an alternative view, which is tolerant of uncertainty and insists that science cannot avoid it. According to the traditional view, science should strive for certainty in all its manifestations (precision, specificity, sharpness, consistency, etc.); hence, uncertainty (imprecision, nonspecificity, vagueness, inconsistency,etc.) is regarded as unscientific. According to the alternative (or modem) view, uncertainty is considered essential to science; it is not only an unavoidable plague, but it has, in fact, a great utility.
Source: Fuzzy sets and fuzzy logic (1995), p. 1.