
„In any triangle the centre of gravity lies on the straight line joining any angle to the middle point of the opposite side.“
— Archimedes, buch On the Equilibrium of Planes
Book 1, Proposition 13.
On the Equilibrium of Planes
Book 1, Proposition 9.
On the Equilibrium of Planes
— Archimedes, buch On the Equilibrium of Planes
Book 1, Proposition 13.
On the Equilibrium of Planes
— Archimedes, buch On the Equilibrium of Planes
Book 1, Proposition 4.
On the Equilibrium of Planes
— Archimedes, buch On the Equilibrium of Planes
Book 1, Proposition 10.
On the Equilibrium of Planes
— Archimedes, buch On the Equilibrium of Planes
Book 1, Proposition 14.
On the Equilibrium of Planes
— Archimedes, buch The Method of Mechanical Theorems
Proposition 6.
The Method of Mechanical Theorems
— Archimedes, buch The Method of Mechanical Theorems
Proposition presumed from previous work.
The Method of Mechanical Theorems
— Aristarchus of Samos ancient Greek astronomer and mathematician
p, 125
On the Sizes and Distances of the Sun and the Moon (c. 250 BC)
— Archimedes, buch The Method of Mechanical Theorems
of the portion adjacent to the base
Proposition presumed from previous work.
The Method of Mechanical Theorems
— Johannes Kepler, buch Astronomia nova
As quoted by Bryant, ibid.
Astronomia nova (1609)
— Mark Twain American author and humorist 1835 - 1910
Quoting a schoolchild in "English as She Is Taught"
— Arthur Schopenhauer, buch Parerga und Paralipomena
Vol. 2 "Further Psychological Observations" as translated in Essays and Aphorisms (1970), as translated by R. J. Hollingdale
Parerga and Paralipomena (1851), Counsels and Maxims
— Kate Bush British recording artist; singer, songwriter, musician and record producer 1958
Song lyrics, The Sensual World (1989)
— Yahia Lababidi 1973
Signposts to Elsewhere (2008)
— Madeleine L'Engle American writer 1918 - 2007
Quelle: A Wrinkle in Time: With Related Readings
— Theodor W. Adorno, buch Minima Moralia
Nun gilt für die kürzeste Verbindung zwischen zwei Personen die Gerade, so als ob sie Punkte wären.
E. Jephcott, trans. (1974), § 20
Minima Moralia (1951)
— Will Durant American historian, philosopher and writer 1885 - 1981
Quelle: The Story of Philosophy: The Lives and Opinions of the World's Greatest Philosophers
— Richard Dedekind German mathematician 1831 - 1916
Stetigkeit und irrationale Zahlen (1872)
— Helen Thomas American author and journalist 1920 - 2013
Interview by Adam Holdorf for Real Change News, (18 March 2004).
— Morris Kline American mathematician 1908 - 1992
Quelle: Mathematical Thought from Ancient to Modern Times (1972), p. 175
Kontext: To avoid any assertion about the infinitude of the straight line, Euclid says a line segment (he uses the word "line" in this sense) can be extended as far as necessary. Unwillingness to involve the infinitely large is seen also in Euclid's statement of the parallel axiom. Instead of considering two lines that extend to infinity and giving a direct condition or assumption under which parallel lines might exist, his parallel axiom gives a condition under which two lines will meet at some finite point.
— Michael Collins (Irish leader) Irish revolutionary leader 1890 - 1922
How could you talk to a man like that?
Referring to Eamon de Valera in conversation with Michael Hayes, at the debates over the Anglo-Irish Treaty in 1921
Michael Hayes Papers, P53/299, UCDA
Quoted in Doherty, Gabriel and Keogh, Dermot (2006). Michael Collins and the Making of the Irish State. Mercier Press, p. 153.