This book concerns with some philosophical issues and debates have been running among philosophers of science. This book is a collection of some articles on science. believing that philosophy of science is a critical-analytical approach, my aim, accordingly, was to deal with some scientific disciplines such as physics, biology and astronomy. I tried throughout this book to present new different account based on what I call structural idealism, where priority is given to structure, law and regulation over matter and properties. As a result, I discussed some philosophical claims using...