Energy cannot be created or destroyed, it can only be changed from one form to another.

We have penetrated far less deeply into the regularities obtaining within the realm of living things, but deeply enough nevertheless to sense at least the rule of fixed necessity... what is still lacking here is a grasp of the connections of profound generality, but not a knowledge of order itself.

It is a magnificent feeling to recognize the unity of complex phenomena which appear to be things quite apart from the direct visible truth.

You cannot simultaneously prevent and prepare for war.

The only thing more dangerous than ignorance is arrogance

The more a man is imbued with the ordered regularity of all events the firmer becomes his conviction that there is no room left by the side of this ordered regularity for causes of a different nature. For him neither the rule of human nor the rule of divine will exist as an independent cause of natural events.

I believe the most important mission of the state is to protect the individual and make it possible for him to develop into a creative personality.