 A second form of empiricism is summed up by the Latin slogan nihil est in intellectu quod non prius fuerit in sensu (nothing is in the intellect which was not first in the senses). We can think of this as a genetic empiricism (Lowe 1995: 189), which makes claims about the origins of our ideas. It takes two forms. The first of these is what we may call tabula rasa (blank slate) empiricism, which denies the existence of innate ideas or principles of reasoning, holding that both our factual knowledge and the concepts we employ in describing the world are drawn from experience. The locus classicus for an empiricism of this kind is the work of John Locke, who famously suggested that the mind is originally “white paper, void of all characters, without any ideas” (Locke Essay 2.1.2). But it also takes the form of what we may describe as a cognitive empiricism. This denies that we have intellectual powers or capacities giving access to factual knowledge independently of experience.