Read the excerpt from locke's an essay concerning human understanding, book ii, and answer the question.

observable in children. he that attentively considers the state of a child first coming into the world, will have little reason to think him stored with plenty of ideas. i think it will be granted easily, that if a child were kept in a place where he never saw any other but black and white till he were a man, he would have no more ideas of scarlet or green, than he that from his childhood never tasted an oyster, or a pine-apple, has of those particular relishes

this kind of thinking is an example, for locke, of

abstraction of general ideas
retention of primary qualities
the mind as a tabula rasa
children as independen substancest