"This is not the place to discuss the validity of his theories... only a small number of them have been able to be tested. ...[I]f his central theme is correct... this embodies a revolutionary discovery of crucial importance. ...Schauberger wished to make practical use of nature's reconstituting principle of 'cycloidal spiral motion' ...However his theories may be regarded, ...he was a great friend of Nature and a man with original, grandiose and often revolutionary ideas. Many have been moved by his ideas about Nature and his philosophy of life..."