at nequeant per se partes sentire necesse est; namque alio sensus membrorum respicit omnis, nec manus a nobis potis est secreta neque ulla corporis omnino sensum pars sola tenere.
But it is impossible for body parts to have individual sensations because every sensation in the body is connected to something else. Neither the hand nor any other body part can experience sensation without being attached to us.