“A tendency to drastically underestimate the frequency of coincidences is a prime characteristic of innumerates, who generally accord great significance to correspondences of all sorts while attributing too little significance to quite conclusive but less flashy statistical evidence.”

1975

Source: Half of a Yellow Sun

Page 17
Other writings, The Nature of the Judicial Process (1921)

2007 Chairman's Letter http://www.berkshirehathaway.com/letters/2007ltr.pdf
Letters to Shareholders (1957 - 2012)
Context: The worst sort of business is one that grows rapidly, requires significant capital to engender the growth, and then earns little or no money. Think airlines. Here a durable competitive advantage has proven elusive ever since the days of the Wright Brothers. Indeed, if a farsighted capitalist had been present at Kitty Hawk, he would have done his successors a huge favor by shooting Orville down.

Introduction (p. 6)
Innumeracy: Mathematical Illiteracy and its Consequences (1988)

Sleeping Murder (1976)

"Modern Examples of Background Physics" ["Moderne Beispiele zur Hintergrundsphysik"] (1948) as translated by David Roscoe in Atom and Archetype (1992) edited by Carl Alfred Meier
Context: It seems significant that according to quantum physics the indestructibility of energy on one hand — which expresses its timeless existence — and the appearance of energy in space and time on the other hand correspond to two contradictory (complementary) aspects of reality. In fact, both are always present, but in individual cases the one or the other may be more pronounced.

Tertium Organum (1922)
Context: Generally speaking, the significance of the indirect results may very often be of more importance than the significance of direct ones. And since we are able to trace how the energy of love transforms itself into instincts, ideas, creative forces on different planes of life; into symbols of art, song, music, poetry; so can we easily imagine how the same energy may transform itself into a higher order of intuition, into a higher consciousness which will reveal to us a marvelous and mysterious world.
In all living nature (and perhaps also in that which we consider as dead) love is the motive force which drives the creative activity in the most diverse directions.

Source: The Door Into Summer (1957), Chapter 8