 Plato’s solutions to this puzzle are difficult to assess (Fine 2014). Learning is recollection, says one proposal (this is the one that Socrates himself immediately offers). We already know, but only in some implicit way, what it takes investigation to come to know explicitly. This is the famous Anamnesis theory (81a-d). If we give up on investigation, we shall be lazy people, says another argument (81d-e). A third solution of the puzzle arguably says that one of its premises is false. It is not the case that, for everything, we either know it or are entirely ignorant of it. Rather, there is a third state, namely belief (83a-86a). Investigation can begin from beliefs.