That paragraph -- extending doubt on 9/11 to all previous contacts -- put the story on front pages.
Descartes thinks this misses the point of the method: namely, to extend doubt universally to candidates for Knowledge, but not also to the very tools for founding Knowledge.
"On all three of those areas Putin holds tremendous doubts, and we have extended those doubts".
In retrospect, Mr. Ford and current State Department officials say, its bureau should have extended its doubts about others' assessments of Iraq's nuclear program to the issue of chemical and biological weapons.
Pico extends Ptolemy's doubts about a few astrological practices, for example, into a broader restriction on celestial influences, which he finds either too diffuse or too slight to be the basis of precise predictions.
Doubt extends far beyond the issue of Europe.
The severity of illness of meningococcal disease generally creates a sense of urgency for the diagnosing physician, which no doubt extends to reporting.
Montaigne was the sceptic's sceptic: his thinking is based on doubt, a doubt that extends even to its own precepts.
In my case, these take the form of a steadily ramifying doubt that extends to every aspect of the journey.
Ebell's work extends beyond creating scientific doubt.
