Floating reference

In Foucault's _History of Sexuality_, vol. 1, he writes:

> One must not speak of these "genital causes": so went the phrase -
> muttered in a muted voice - which the most famous ears of our time
> overheard one day in 1886, from the mouth of Charcot.
[pg. 112, Hurley trans.]

I must admit, I'm deathly curious as to who Foucault considers to be
"the most famous ears of our time." Anyone have any idea whom this is
a reference to?

----Ben

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