Answer: Socrates presents an argument to support his theory, known as the "Meno's Paradox." He engages in a dialogue with Meno, a student of his, and presents a mathematical problem to one of Meno's slaves. Despite the slave having no prior knowledge of geometry, Socrates guides him through a series of questions to arrive at the correct answer. Socrates argues that since the slave was able to arrive at the answer through questioning alone, he must have recollected the knowledge from a previous existence.
However, it's important to note that Socrates's theory of recollection is based on metaphysical assumptions and cannot be empirically proven. It relies on the belief in the immortality of the soul and the existence of a pre-existing knowledge. This theory has been subject to criticism and debate throughout history.
Critics argue that the "Meno's Paradox" can be explained by other factors such as leading questions, logical reasoning, or the slave simply figuring out the answer by trial and error. Furthermore, the theory of recollection raises questions about the nature of knowledge acquisition, memory, and the existence of the soul itself.
In conclusion, whether one is convinced by Socrates's demonstration that all knowledge is recollected depends on their acceptance of the underlying metaphysical assumptions and the interpretation of the evidence presented. It remains a topic of philosophical inquiry and debate.