Nature can be thought of as a closed system whose mutual relations do not require the expression of the fact that they are thought about.


The Concept of Nature, Chapter i (p. 3)


Nature can be thought of as a closed system whose mutual relations do not require the expression of the fact that they are thought about.

Nature can be thought of as a closed system whose mutual relations do not require the expression of the fact that they are thought about.

Nature can be thought of as a closed system whose mutual relations do not require the expression of the fact that they are thought about.

Nature can be thought of as a closed system whose mutual relations do not require the expression of the fact that they are thought about.