“Sometimes a single event can be so rich in itself and its facets that it is necessary to move all around it in your search for the solution to the problems it poses — for the world is movement, and you cannot be stationary in your attitude toward something that is moving.”
The Decisive Moment (1952), p. i; also in The Mind's Eye (1999)
Context: The picture-story involves a joint operation of the brain, the eye and the heart. The objective of this joint operation is to depict the content of some event which is in the process of unfolding, and to communicate impressions. Sometimes a single event can be so rich in itself and its facets that it is necessary to move all around it in your search for the solution to the problems it poses — for the world is movement, and you cannot be stationary in your attitude toward something that is moving. Sometimes you light upon the picture in seconds; it might also require hours or days. But there is no standard plan, no pattern from which to work.
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Henri Cartier-Bresson 33
French photographer 1908–2004Related quotes
Christopher McDougall (2015). Natural Born Heroes: How A Daring Band of Misfits Mastered the Lost Secrets of Strength and Endurance, Vintage.

“If you show people the problems and you show people the solutions they will be moved to act.”
At Live8 (2 July 2005) as reported in BBC News (4 July 2005) http://news.bbc.co.uk/1/low/technology/4648003.stm
2000s

The Day the Universe Changed (1985)

Mathematical Methods in Science (1977)
Context: We wish to see... the typical attitude of the scientist who uses mathematics to understand the world around us.... In the solution of a problem... there are typically three phases. The first phase is entirely or almost entirely a matter of physics; the third, a matter of mathematics; and the intermediate phase, a transition from physics to mathematics. The first phase is the formulation of the physical hypothesis or conjecture; the second, its translation into equations; the third, the solution of the equations. Each phase calls for a different kind of work and demands a different attitude.<!--p.164

In Futurism, ed. Didier Ottinger; Centre Pompidou / 5 Continents Editions, Milan, 2008.
1914 - 1916, Pittura e scultura futuriste' Milan, 1914