For school. I didnt like this book. I had to read it, but to be honest, I'm still not sure why. I still dont understand why people have to wrtite a book about something, that could be said with less paper. I think that this book should not be like 300 pages long, but more like 10-50 pages. It was ok to read, but I didnt find it important. Just...meh. Plus.... philosophy of scients....seriously? Tell me again why do we need it???