“math> (\left|x\right\rang \left|y\right\rang- \left|y\right\rang \left|x\right\rang) … was my first lesson in quantum mechanics, and in a very real sense my last, since the rest is mere technique, which can be learnt from books.”

—  John Clive Ward

J. C. Ward, Memoirs of a Theoretical Physicist (Optics Journal, Rochester, 2004).

Adopted from Wikiquote. Last update June 3, 2021. History

Help us to complete the source, original and additional information

Do you have more details about the quote "math> (\left|x\right\rang \left|y\right\rang- \left|y\right\rang \left|x\right\rang) … was my first lesson in quantum m…" by John Clive Ward?
John Clive Ward photo
John Clive Ward 5
British-Australian nuclear physicist 1924–2000

Related quotes

William Cranch photo

“In a government which is emphatically stiled a government of laws, the least possible range ought to be left for the discretion of the judge.”

William Cranch (1769–1855) United States federal judge (1769-1855)

Source: Reports of Cases Argued and Adjudged in the Supreme Court of the United States (1804) https://books.google.com/books?id=Wxm9qWvls8YC&pg=PR3

Alain photo

“When people ask me if the division between parties of the right and parties of the left, men of the right and men of the left, still makes sense, the first thing that comes to mind is that the person asking the question is certainly not a man of the left.”

Alain (1868–1951) French philosopher

Statement of 1931, as quoted by Marcel Gauchet, Realms of Memory: Rethinking the French Past, Vol. 1 - Conflicts and Divisions, edited by Pierre Nora and Lawrence Kritzman, p. 266 ISBN 9780231084048

Hillary Clinton photo

“My primary mission as President will be to create more opportunity and more good jobs with rising wages right here in the United States… From my first day in office to my last! Especially in places that for too long have been left out and left behind.”

Hillary Clinton (1947) American politician, senator, Secretary of State, First Lady

Presidential campaign (April 12, 2015 – 2016), (July 28, 2016)

Jay Nordlinger photo

“There's a point at which left and right join.”

Jay Nordlinger (1963) American journalist

"Jaywalking" https://web.archive.org/web/20180913133208/https://jaywalking-tapes.nationalreview.com/jaywalking-035-09.12.2018.mp3 (12 September 2018), National Review
2010s

Adonis Georgiadis photo

“The difference between the right and the left is this: the left lives in the imaginary world, always discusses what it would like to happen the right, that is us, live in the real world, we look to see what can be done”

Adonis Georgiadis (1972) Greek politician

As he said in the Greek parliament
Source: https://www.youtube.com/watch?v=wqZeImBRWjc

Golda Meir photo

“In Israel, we read from right to left.”

Golda Meir (1898–1978) former prime minister of Israel

To Henry Kissinger, US Secretary of State, who had written her that he considers himself 'an American first, Secretary of State second, and a Jew third'
Source: https://books.google.com.ar/books?id=kOICAAAAMBAJ&pg=PA28&lpg=PA28&dq=Golda+Meir+In+Israel,+we+read+from+right+to+left.&source=bl&ots=JVGhSq8aqj&sig=i0y3YiXiGFjO7UPRpBvAP36p6e0&hl=es-419&sa=X&ei=zpOgVJjnDIuVNvJK&ved=0CCsQ6AEwAg#v=onepage&q=Golda%20Meir%20In%20Israel%2C%20we%20read%20from%20right%20to%20left.&f=false

Zlatan Ibrahimović photo

“I went left, he went left. I went right, he went right. I went left again, he went to buy a hot dog.”

Zlatan Ibrahimović (1981) Swedish association football player

on being marked by Liverpool defender Stephane Henchoz (Kuper, 2011).
Attributed

“… the devil on my right shoulder must have brutally strangled the angel on my left…”

Gena Showalter (1975) American writer

Source: Playing with Fire

Anne Lamott photo

“Anne Lamott’s priest friend Tom, how to get through:
"Left foot, right foot, left foot, breathe," he said. "Right foot, left foot, right foot, breathe."
Salon April 25, 2003”

Anne Lamott (1954) Novelist, essayist, memoirist, activist
Thomas Little Heath photo

“The discovery of Hippocrates amounted to the discovery of the fact that from the relation
(1)\frac{a}{x} = \frac{x}{y} = \frac{y}{b}it follows that(\frac{a}{x})^3 = [\frac{a}{x} \cdot \frac{x}{y} \cdot \frac{y}{b} =] \frac{a}{b}and if a = 2b, [then (\frac{a}{x})^3 = 2, and]a^3 = 2x^3.The equations (1) are equivalent [by reducing to common denominators or cross multiplication] to the three equations
(2)x^2 = ay, y^2 = bx, xy = ab[or equivalently…y = \frac{x^2}{a}, x = \frac{y^2}{b}, y = \frac{ab}{x} ]Doubling the Cube
the 2 solutions of Menaechmusand the solutions of Menaechmus described by Eutocius amount to the determination of a point as the intersection of the curves represented in a rectangular system of Cartesian coordinates by any two of the equations (2).
Let AO, BO be straight lines placed so as to form a right angle at O, and of length a, b respectively. Produce BO to x and AO to y.
The first solution now consists in drawing a parabola, with vertex O and axis Ox, such that its parameter is equal to BO or b, and a hyperbola with Ox, Oy as asymptotes such that the rectangle under the distances of any point on the curve from Ox, Oy respectively is equal to the rectangle under AO, BO i. e. to ab. If P be the point of intersection of the parabola and hyperbola, and PN, PM be drawn perpendicular to Ox, Oy, i. e. if PN, PM be denoted by y, x, the coordinates of the point P, we shall have

\begin{cases}y^2 = b. ON = b. PM = bx\\ and\\ xy = PM. PN = ab\end{cases}whence\frac{a}{x} = \frac{x}{y} = \frac{y}{b}.
In the second solution of Menaechmus we are to draw the parabola described in the first solution and also the parabola whose vertex is O, axis Oy and parameter equal to a.”

Thomas Little Heath (1861–1940) British civil servant and academic

The point P where the two parabolas intersect is given by<center><math>\begin{cases}y^2 = bx\\x^2 = ay\end{cases}</math></center>whence, as before,<center><math>\frac{a}{x} = \frac{x}{y} = \frac{y}{b}.</math></center>
Apollonius of Perga (1896)

Related topics