Justus von Liebig (12 May 1803 – 18 April 1873) was a German chemist who made major contributions to agricultural and biological chemistry and worked on the organization of organic chemistry.
Justus Von Liebig Chemische Briefe (1851) Full Text (quote's translation probably by Martin H. Fischer); quoted in Physical Chemistry in the Service of Medicine (1907), Wolfgang Pauli, p.71, tr. by Martin H. Fischer. Full Text