"...conception of a natural substance as characterized above all by an 'inner principle of change and stasis'. This notion of 'the nature of a thing' links Aristotle's metaphysics of substance to his physical system, and it determines almost every one of that sytem's distinctive positions."

...und immer wieder fällt mir Ihr Buch schon nach der ersten Seite aus den Händen, Frau Wasserniedrig. Und dabei muss es doch...