Immanuel Kant covered problems which had not been developed by his predecessors because it was necessary for him to prepare an alternative system (e.g. he strived to point out what the ether was in Meditations of fire, which had not been mentioned by Newton, while in his study 'Thoughts on the True Estimation of Living Forces' he attempted to establish the law of the living forces, which had not been indicated by Leibniz). The defining of the notion of ether would make it possible to determine the problem of the punctual (or not) character of matter and the nature of the mutual influence of the material elements. This was crucial for organizing the system (otherwise, the elements of matter could not interact with each other, which would result in the impossibility of the explanation of the laws of nature, and even the interpretation of the existence of the real world). Furthermore, the attempt to detect the law of the living forces was in turn intended to put in order the domain of global activity. This law was fundamental for the principles of the mechanics, dynamics, kinematics, etc. The final attempt to overcome the conceptions of his predecessors was the creation of his own project of a new physics, the first part of which was Physical monadology.