Whether or no it be true, as someone has said, that with words we govern men, it is at least certain that when a name has once passed into common speech it becomes a fact and a power. The term Political Science seems now generally accepted and your Association has by its very title expressed the opinion that Politics is a science. Nevertheless, to prevent misconception, we may properly ask “What sort of a science is it?” The mathematical sciences are described as exact sciences: and so too are such departments of knowledge as mechanics and physics. The laws and conclusions of these sciences can be expressed in precise terms. They can be stated in numbers. As the facts which these sciences deal with are the same everywhere and at all times, so the relations of those facts which we call Laws are of universal application. That being so we can predict their action and rely upon them to be the same in the future as they have been in the past.