Ridley begins this chapter introducing many distinct political ideals, such as Marxism and Freudianism. Ridley implies that genetic may have a heavy determination on human behavior. Using the example of human grammar and how little children can speak perfect grammar before learning it, indicating that it might be innate. A gene on Chromosome 7 linked with a disorder called SLI (Specific Language Impairment) unlock the idea that heredity has do to with speech as well. Because the discovery of a gene that can affect grammar, Ridley connects grammar instincts to natural selection as a means of survival.
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