Nothing is more incontestable than the existence of our sensations; ...
Rien n'est plus incontestable que l'existence de nos sensations; ...
Original text (French)
Notes from Wikiquote
in the Discours préliminaire de l’Encyclopédie.
Original text (French)
Quote text and notes from Wikiquote: Jean le Rond d'Alembert (page history), available under CC BY-SA 4.0. Source quality and labels are our own summary of what Wikiquote records.