Weekly jounal ― I read a book writen by Decartes －

 Yesterday, I read a book writen by Decartes. The book is "DISCOURSE ON THE METHOD OF RIGHTLY CONDUCTING THE REASON, AND SEEKING TRUTH IN THE SCIENCES","houhoujosetsu" in Japanese. This book is so difficult to read. Therefore, I can't understand it very well. Houever, I can learn one thing from this book. The thing is "do the thing you decide once to the last" I recommend this book.