--| Limbs fashioned by Impulse |--- 

The stone has a form;
the animal also has a form.
The stone remains motionless in its place.
The animal changes its place.
It is instinct (desire) which causes the animal to change its place.
Instincts, too, are served by the form of the animal.
Its organs and limbs are fashioned in accordance with desires,
but in accordance with desireless force.

(Rudolf Steiner, *How To Know Higher Worlds*, Chapter 2)

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