
Source: The Characteristics of the Present Age (1806), p. 14
Source: The Principles of Agriculture, 1844, Section I: The fundamental principles, p. 2.
Source: The Characteristics of the Present Age (1806), p. 14
Preface (8 May 1686)
Philosophiae Naturalis Principia Mathematica (1687)
Context: The ancients considered mechanics in a twofold respect; as rational, which proceeds accurately by demonstration, and practical. To practical mechanics all the manual arts belong, from which mechanics took its name. But as artificers do not work with perfect accuracy, it comes to pass that mechanics is so distinguished from geometry, that what is perfectly accurate is called geometrical; what is less so is called mechanical. But the errors are not in the art, but in the artificers. He that works with less accuracy is an imperfect mechanic: and if any could work with perfect accuracy, he would be the most perfect mechanic of all; for the description of right lines and circles, upon which geometry is founded, belongs to mechanics. Geometry does not teach us to draw these lines, but requires them to be drawn; for it requires that the learner should first be taught to describe these accurately, before he enters upon geometry; then it shows how by these operations problems may be solved.
An Essay on the Nature and Conduct of the Passions and Affections (1728), Treatise II: Illustrations upon the Moral Sense, Sect. I
Source: The Principles of Agriculture, 1844, Section I: The fundamental principles, p. 1.
Source: The Principles of Agriculture, 1844, Section I: The fundamental principles, p. 2.
Source: 1970's, Joseph Beuys... Public Dialogue' 1974, p. 5; Lead paragraph of article
Russian Novelists (1887), page 10 (translated by Jane Loring Edmands)
Quote of Malevich, 1927 in Artists on Art; from the 14th – 20th centuries, ed. by Robert Goldwater and Marco Treves; Pantheon Books, 1972, London, pp. 452
1921 - 1930
Die dem Satz vom Grunde nachgehende ist die vernünftige Betrachtungsart, welche im praktischen Leben, wie in der Wissenschaft, allein gilt und hilft: die vom Inhalt jenes Satzes wegsehende ist die geniale Betrachtungsart, welche in der Kunst allein gilt und hilft.
Die Welt als Wille und Vorstellung, Zweiter Band, Ergänzungen zum dritten Buch, para. 36 (1859)
The World as Will and Representation (1819; 1844; 1859)