"Placing its hands on itself it will discover that it has a body, but only when it has distinguished the different parts of it and recognized in each the same sentient being. It will discover there are other bodies when it touches things in which it does not find itself."
Etienne Bonnot de Condillac in: Thiel, Udo, Hüning, Dieter, Klingner, Stefan, Motta, Giuseppe und Stiening, Gideon. Self and Sensibility: Essays in Eighteenth-Century Philosophy of Mind, Berlin, Boston: De Gruyter, 2025, S. 108.