For this simple idea, entering by the touch as well as sight, it is impossible to show an example of any one who has no other way to get the idea of motion, but barely by the definition of that name.
Izan ere, higiduraren ideia bakuna ikusmenetik bezainbatean ukimenetik ere sartzen delarik, ez dago frogatzerik, adibide bakar batik ere emanda, norbaitek higiduraren ideia hartzeko ez duela izenaren definizioa beste biderik ukan.