Portmann A
Zoologisches Institut, University of Basel, Switzerland.
J Med Philos. 1990 Oct;15(5):457-72. doi: 10.1093/jmp/15.5.457.
The significance of the behavior of biological entities cannot be fully explained in terms of the physical and chemical processes upon which contemporary biological and medical research depends. The characteristic proper of biological entities is that they are systems marked by 'inwardness', that is, a capacity to interpret meanings in order to reach goals. The significance of this characteristic is given in examples from the author's morphological research.