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" All scientific work is incomplete — whether it be observational or experimental. All .scientific work is liable to be upset or modified by advancing knowledge. That does not confer upon us a freedom to ignore the knowledge we already have, or to postpone... "
The Secret History of the War on Cancer - Página 191
de Devra Lee Davis - 2007 - 528 páginas
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Air Quality Criteria: Staff Report Prepared for the Use of the Subcommittee ...

United States. Congress. Senate. Committee on Public Works - 1968 - 69 páginas
...causation available. This philosophy was appropriately expressed by Sir AB Hill ( 1962) when he wrote : "All scientific work is incomplete — whether it...action that it appears to demand at a given time." The lessons of the past in general health and safety practices are easy to read. They are characterized...
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Tax Recommendations of the President, Hearings ... 91-2, September 9, 10, 14 ...

United States. Congress. House. Ways and Means - 1970 - 696 páginas
...subject to modification through advances in research. But these truths cannot be used as an excuse to ignore the knowledge we already have or to postpone the action that such knowledge appears to demand at a given time. Reversing the tide of environmental pollution will...
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Tax Recommendations of the President: Hearings, Ninety-first Congress ...

United States. Congress. House. Committee on Ways and Means - 1970 - 574 páginas
...subject to modification through advances in research. But these truths cannot be used as an excuse to ignore the knowledge we already have or to postpone the action that such knowledge appears to demand at a given time. Reversing the tide of environmental pollution will...
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The Inner City Environment and the Role of the Environmental Protection ...

United States. Congress. Senate. Committee on Commerce. Subcommittee on the Environment - 1972 - 340 páginas
...for lead free gasoline, and lead-free lungs.7 C. Several decisive actions are required without delay All scientific work is incomplete — whether it be...the action that it appears to demand at a given time (Hill, 1965). At best, knowledge of the scientific and medical realities of atmospheric lead pollution...
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Nondegradation Policy of the Clean Air Act: Hearing, Ninety-third Congress ...

United States. Congress. Senate. Committee on Public Works. Subcommittee on Air and Water Pollution - 1973 - 418 páginas
...causation available. This philosophy was appropriately expressed by Sir AB Hill (1962) when he wrote: "All scientific work is incomplete — whether it...action that it appears to demand at a given time." The lessons of the past in general health and safety practices are easy to read. They are characterized...
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Automotive Lead Emissions: Hearings Before the Panel on ..., Parte 2

United States. Congress. Senate. Committee on Public Works. Panel on Environmental Science and Technology - 1974 - 1328 páginas
...would, however, repeat emphatically that this does not imply crossing every V and swords with ever)' critic before we act. "All scientific work is incomplete...action that it appears to demand at a given time."* These quotations provide satisfying support of my view of our obligation to study and subsequently...
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Automotive Lead Emissions: Hearings Before the Panel on ..., Parte 2

United States. Congress. Senate. Committee on Public Works. Panel on Environmental Science and Technology - 1974 - 1304 páginas
...repeat emphatically that this does not imply crossing every V and swords with every critic l>efore we act. "All scientific work is incomplete — whether...action that it appears to demand at a given time."* These quotations provide satisfying support of my view of our obligation to study and subsequently...
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Automotive Lead Emissions, Hearings Before the Panel on Environmental ...

United States. Congress. Senate. Committee on Public Works - 1974
...'t' and swords with every critic before we act. "All scientific work is incomplete — whether ¡t be observational or experimental. All scientific work...action that it appears to demand at a given time."* These quotations provide satisfying support of my view of our obligation to study and subsequently...
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Information on Levels of Environmental Noise Requisite to Protect Public ...

United States. Office of Noise Abatement and Control - 1974 - 196 páginas
...liable to be upset or modified by advancing knowledge. That does not confer upon us freedom to lower the knowledge we already have, or to postpone the action that it appears to demand at a given time. The lessons of the past in general health and safety practices are easy to read. They are characterized...
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Epidemiology in Medicine, Volumen 515

Julie E. Buring - 1987 - 408 páginas
...or experimental. All scientific work is liable to be upset or modified by advancing knowledge. This does not confer upon us a freedom to ignore the knowledge...given time. Who knows, asked Robert Browning, but that the world may end tonight? True, but on available evidence most of us make ready to commute on...
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