“At a certain stage every single thing can be a sign.”
Let the Great World Spin (2009), Book One: A Fear of Love
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Colum McCann 71
Irish writer and journalist 1965Related quotes

Answer to a survey written by the French mathematician Jaques Hadamard, from Hadamard's An Essay on the Psychology of Invention in the Mathematical Field (1945). Reprinted in Ideas and Opinions (1954). His full set of answers to the questions can be read on p. 3 here http://www.pitt.edu/~jdnorton/Goodies/Einstein_think/index.html.
1940s
Context: The words or the language, as they are written or spoken, do not seem to play any role in my mechanism of thought. The psychical entities which seem to serve as elements in thoughts are certain signs and more or less clear images which can be "voluntarily" reproduced and combined. There is, of course, a certain connection between those elements and relevant logical concepts. It is also clear that the desire to arrive finally at logically connected concepts is the emotional basis of this rather vague play with the above-mentioned elements.... The above-mentioned elements are, in my case, of visual and some muscular type. Conventional words or other signs have to be sought for laboriously only in a secondary stage, when the mentioned associative play is sufficiently established and can be reproduced at will.

Vol. II, Ch. V Aphorisms and Extracts, p. 74.
Memoirs and Correspondence (1900)

“Every art and every faculty contemplates certain things as its principal objects.”
Book I, ch. 20.
Discourses

“The most certain sign of wisdom is cheerfulness.”
Source: Bird by Bird: Some Instructions on Writing and Life

Review http://www.rogerebert.com/reviews/american-pie-2-2001 of American Pie 2 (10 August 2001)
Reviews, Three star reviews