The Future of Science (1959), p. 79; also in BBC The Listener, Vol. 61 (1959), p. 505 
1950s
                                    
“My scepticism warns me of the danger of becoming a fanatic, a danger which no faith has yet averted.”
            Meine Skepsis bewahrt mich davor, Fanatiker zu werden wovor noch kein Glaube geschützt hat. 
 deschner.info http://www.deschner.info/index.htm?/de/person/zitate.htm
        
Original
Meine Skepsis bewahrt mich davor, Fanatiker zu werden wovor noch kein Glaube geschützt hat.
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Karlheinz Deschner 17
German writer and activist 1924–2014Related quotes
Opening address to the Great Council of Chiefs meeting, 27 July 2005 (excerpts)
                                        
                                        Die Gefahr, dass der Computer so wird wie der Mensch, ist nicht so groß wie die Gefahr, dass der Mensch so wird wie der Computer. 
Attributed in: Hersfelder Zeitung. Nr. 212, 12. September 2005.
                                    
                                        
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2019
                                    
“The world has become too dangerous for anything less than utopias.”
John R. Piatt (1969) in: New York Times, September 2, 1969.