Balibar remark

All,

In Pattons _Critical Reader_, in Zourabichvili's essay, I found this
footnote (p. 214, note 11):

"Etienne Balibar has suggested that over and above the express references
to Plotinus, Hume and Butler (the concept of contemplation, of the
contemplative habit), Deleuze rejoins a line of French empiricism opposed
to Locke (Condillac, Lamarck)."

1. Does anyone know if there is a textual source for this remark, of if it
was just somethin Z. oveheard B. saying one day?

2. If anyone cares to comment more generally on the remark and its context
in the body of the essay, I'd be pleased...

Yours
Elias