“All the great dangers threatening humanity with extinction are direct consequences of conceptual thought and verbal speech [the greatest gifts of man]…Knowledge springing from conceptual thought robbed man of the security provided by his well adapted instincts long, long before it was sufficient to provide him with an equally safe adaptation. Man is, as Arnold Gehlen has so truly said, by nature a jeopardized creature”

Konrad Lorenz, On Aggression (1963).