John Locke also developed his own theory of abstract ideas although it was against the Scholastic theory of essences. For him, ideas originate through the senses and the materials or the sensory data provided by these become the basis of the way we form general ideas of classes of things.
John Locke contributed a distinct perspective on abstract concepts, diverging from the traditional Scholastic viewpoint on essential characteristics. In his view, ideas originate from sensory experience and the tangible data it provides serve as the basis for constructing broad categories of objects.