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Vladimir Hachinski, MD, DSc
London, Ontario

Arch Neurol. 2000;57:1780-1781.

	Since this article does not have an abstract, we have provided the first 150 words of the full text and any section headings.

WHERE knowledge fails, controversies thrive. Often strong words buttress weak facts, while fervor preempts proof. This is unlikely to abate soon, so that controversies will long enliven our quest for knowledge.

Sixteen years of controversies in the ARCHIVES illustrate the point. Some controversies have been superseded (eg, brain biopsy in suspected cases of herpes simplex encephalitis); some have been settled, such as the use of magnesium sulfate in eclampsia; and some have been restated at a higher level of knowledge (eg, the indications for carotid endarterectomy in asymptomatic patients).

This section began when Robert J. Joynt, MD, PhD, answered my suggestion for a controversy section by putting me in charge of it. It has been a remarkable journey, across a wide range of topics. I have tried to be equanimous, but have not shied away from taking a stand. The most enduring controversy flared around the . . . [Full Text of this Article]

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