
The Notebooks of Leonardo da Vinci (1883), XIX Philosophical Maxims. Morals. Polemics and Speculations.
Quoted in The officer's manual. Napoleon's maxims of war
The Notebooks of Leonardo da Vinci (1883), XIX Philosophical Maxims. Morals. Polemics and Speculations.
Kant, Immanuel (1996), page 195
Anthropology from a Pragmatic Point of View (1798)
Alhazen, quoted in “Muslim Journeys.” Bridging Cultures Bookshelf: Muslim Journeys. N.p., n.d. Web. 01 Nov. 2013. Also in Ibn al-Haytham Brief life of an Arab mathematician: died circa 1040 (September-October 2003) http://harvardmagazine.com/2003/09/ibn-al-haytham-html
The Tragic Sense of Life (1913), VI : In the Depths of the Abyss
As quoted in From Grandmother with Love (2005) by Becky Kelly and Patrick Regan, p. 53.
Kosmos (1845 - 1847)
Context: The principal impulse by which I was directed was the earnest endeavor to comprehend the phenomena of physical objects in their general connection, and to represent nature as one great whole, moved and animated by internal forces. My intercourse with highly-gifted men early led me to discover that, without an earnest striving to attain to a knowledge of special branches of study, all attempts to give a grand and general view of the universe would be nothing more than a vain illusion. These special departments in the great domain of natural science are, moreover, capable of being reciprocally fructified by means of the appropriative forces by which they are endowed.
"The Children’s Hour" in My Ten Years in a Quandary and How They Grew (1936)
"Exclusion Principle and Quantum Mechanics," Nobel Prize acceptance lecture for the discovery of the Exclusion Principle, also called the Pauli Principle (Dec. 13, 1946)
Daniele De Rossi, ( Source http://www.liverpoolfc.com/news/first-team/121199-de-rossi-gerrard-is-my-idol) (8th May 2015)
Political Science for Civil Services Main Examination (2010)