Stephen Jay Gould Quote

Genes make enzymes, and enzymes control the rates of chemical processes. Genes do not make novelty seeking or any other complex and overt behavior. Predisposition via a long chain of complex chemical reactions, mediated through a more complex series of life's circumstances, does not equal identification or even causation.

"The Internal Brand of the Scarlet W", p. 282 - The Lying Stones of Marrakech (2001)