The Differential and Integral Calculus (1836)
“As long as algebra and geometry proceeded along separate paths, their advance was slow and their applications limited. But when these sciences joined company, they drew from each other fresh vitality and thenceforward marched on at a rapid pace toward perfection.”
Dans Les Leçons Élémentaires sur les Mathématiques (1795) Leçon cinquiéme,Tr. McCormack, cited in Robert Edouard Moritz, Memorabilia mathematica or, The philomath's quotation-book (1914) Ch. V The teaching of mathematics, p. 81. https://archive.org/stream/memorabiliamathe00moriiala#page/80/mode/2up
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Joseph Louis Lagrange 6
Italian mathematician and mathematical physicist 1736–1813Related quotes
An Examination of Sir William Hamilton's Philosophy (1865) as quoted in 5th ed. (1878) p. 617. https://books.google.com/books?id=ojQNAQAAMAAJ&pg=PA617
Source: Find Your Why: A Practical Guide for Discovering Purpose for You and Your Team
§ 1
New Era Community (1926)
Founding Address (1876)
Context: The moral improvement of the nations and their individual components has not kept pace with the march of intellect and the advance of industry. Before the assaults of criticism many ancient strongholds of faith have given way, and doubt is fast spreading even into circles where its expression is forbidden. Morality, long accustomed to the watchful tutelage of faith, finds this connection loosened or severed, while no new protector has arisen to champion her rights, no new instruments been created to enforce her lessons among the people. As a consequence we behold a general laxness in regard to obligations the most sacred and dear. An anxious unrest, a fierce craving desire for gain has taken possession of the commercial world, and in instances no longer rare the most precious and permanent goods of human life have been madly sacrificed in the interests of momentary enrichment.
Women Saints of East and West