“A cell of a higher organism contains a thousand different substances, arranged in a complex system. This great organized system was not discovered by chemical or physical methods; they are inadequate to its refinement and delicacy and complexity.” DifferentHigherThousandMethodComplexesCellsSubstanceComplexityOrganizedChemicalsOrganismsInadequateRefinementDelicacyComplex SystemsBiochemistry Author:Herbert Spencer Jennings