Steven Pinker is even more cavalier. In his various books, he insists that the human brain is nothing more than an ingeniously assembled computer whose programming has been done by chance and natural selection. “The self… is just another network of brain systems…. The evidence is overwhelming that every aspect of our mental lives depends entirely on physiological events in the tissues of the brain.” Yet Pinker does not see why this view of man should threaten free will or purpose or morality in any way: “I can’t imagine how anything coming out of the laboratory… could possibly subtract from the meaning of life:’ In another book, he says that “happiness and virtue have nothing to do with what natural selection designed us to accomplish…. They are for us to determine.” Pinker writes that just because his genes are programmed for survival and reproduction doesn’t mean he has to act in this way. “Well into my procreating years I am, so far, voluntarily childless … ignoring the solemn imperative to spread my genes…. If my genes don’t like it, they can go jump in the lake.”