“What makes a gene good? As a first approximation I said that what makes a gene good is the ability to build efficient survival machines – bodies. We must now amend that statement. The gene pool will become an evolutionarily stable set of genes, defined as a gene pool that cannot be invaded by any new gene.”

“What makes a gene good? As a first approximation I said that what makes a gene good is the ability to build efficient survival machines – bodies. We must now amend that statement. The gene pool will become an evolutionarily stable set of genes, defined as a gene pool that cannot be invaded by any new gene.”

— Richard Dawkins