 At the end of the 20th century, based upon insight gleaned from the gene-centered view of evolution, biologists George C. Williams, Richard Dawkins, and David Haig, among others, concluded that if there is a primary function to life, it is the replication of DNA and the survival of one's genes.This view has not achieved universal agreement; Jeremy Griffith is a notable exception, maintaining that the meaning of life is to be integrative.Responding to an interview question from Richard Dawkins about "what it is all for", James Watson stated "I don't think we're "for" anything.