Chapter 12. Epilogue

Now this is not the end. It is not even the beginning of the end. But it is, perhaps, the end of the beginning. - Winston Churchill

This book presents a number of features of cognition, many of which are explained using concepts from set theory and mereology. Its aim is to contribute to our understanding of ourselves and the world: to do so, it touches on numerous fields such as psychology, mereology, mathematics, philosophy, and linguistics. As it has collected together subject matter from a wide range of topics, it has been somewhat necessary to avoid going into great depth. If you would like to know more, please visit the companion website at

On a personal note, I hope that reading this book has been both enjoyable and intellectually stimulating. I apologize for any mistakes I have made or any ignorance I have unwittingly transmitted.

May it benefit all beings.