Recently in Sophie's World, I was quite interested with the chapter on Hume and Berkeley. These three great philosophers were known for being empiricists, people who believed that perception and knowledge is based off of experiences, memories, and senses. Hume was considered the greatest of all the empiricists, he was completley convinced that perception was based off of both impressions and ideas. His ideas and teachings were of great influence to another great philosopher, Kant. Berkeley, another great empiricist, was known for questioning everything, he questioned even more than other empiricists. After we learned about the philosophers, the novel gave us a huge twist. The Bjerkely chapter began with Hilde waking up on her birthday and doing some pretty usual everyday things. However, she ends up finding what she believes to be her birthday present from her father, a book he had written for her called "Sophie's World". That's where the epiphany came to me that Sophie really isn't real, she is just a character, and all the weird things that are happening to her are just jokes or connections from Hilde's father to Hilde. This chapter leaves you both confused and wanting more... is Sophie real? Is Hilde real? Are we real? Maybe the rest of the book will tell.