The German government has taken energetic measures against the propagation of the defective, the mentally diseased, and the criminal. The ideal solution would be the suppression of each of these individuals as soon as he has proven himself to be dangerous.

As quoted by Andrés Horacio Reggiani: God's eugenicist. Alexis Carrel and the sociobiology of decline. Berghahn Books, Oxford 2007, p. 71. See Der Mensch, das unbekannte Wesen. DVA, Stuttgart 1937. - Man, The Unknown (1935)